JPS58214319A - Wet separator and method of purifying contaminated conditioning air - 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 The present invention relates to a wet separator such as an outlet from a process cavity such as a spray paint booth 1), particularly a separator formed such as a venturi outlet under the floor of a paint booth; The present invention relates to a method for purifying conditioned air contaminated by wet separators of this type.

It is already known, for example, to use seven or more venturis as outlets from a spray painting booth for spray painting car bodies. Venturis are placed directly under the grid-like floor or at some intervals, and the contaminated conditioned air flows through these venturis, collecting paint particles that can be easily disposed of in the next separation step. The air velocity increases enough to produce special effects. In accordance with normal practice, the water is circulated through the venturi throughout the lattice floor, so it is not modified by the paint. The water is then conveyed through a collection chamber, from where it is recirculated to a storage tank or another storage tank below the floor. Also, the air can be recirculated in whole or in part.

In general, such known solutions work well to remove contaminants, but the equipment is difficult to clean and produces loud noises that are very bothersome. Modifications that reduce noise increase cleaning difficulties [7, and vice versa. The reason for this is that it is difficult to clean devices that have a large noise reduction effect as a rule, so this is the opposite, and devices that can be easily cleaned generally generate a very high amount of noise. Equipment with low noise production and reduced ease of cleaning can be so noisy as to be a nuisance to workers who must contribute their time in ventilated spray painting booths and other work areas.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wet separator which generates less noise and which nevertheless has an increased ability to separate contaminants and is easier to clean and maintain. Another object of the invention is to improve the art in various respects, such as to improve the ability to reuse air and overflow liquids to save energy.

Such objects are achieved in accordance with the invention by providing an improved wet separator of the type described above.

Experiments have shown that under the same operating conditions, a wet separator of conventional design exhibits a noise value of about g, 2 dB, and a wet separator according to the invention significantly reduces this noise value. It is shown. Even a small reduction in decibel values must be considered a substantial improvement, as it represents a great deal of peace of mind for workers in paint booths and other work areas.

In FIG. 1, the symbol / indicates a coating booth l in which a coating device q spray-paints an object, such as a car body 3, conveyed by a conveyor. This paint booth has a floor S in the form of a grid.

Preferably, the ceiling 6 of the painting booth is perforated, but alternatively a single layer of filter is provided over the entire width, allowing partial airflow to pass through the holes in the ceiling! An air nozzle 7 can be provided for forming an air curtain S with a higher velocity than 9, the air flow, 29 varying between the operator areas on both sides of the coating booth l and the processing area in the center of the coating booth l. I can do it.

An intake bridge 9 is installed above the ceiling 9, and in the vicinity of this intake bridge 9, a filter and a dispersion device 10 for the incoming air flow 7.2 can be installed, and a fan 3 and appropriate temperature settings/humidity settings can be installed. An inlet air stream 7.2 can enter via a duct // with a control device /l'. In FIG. 1 a further preferred illumination device 7.1 is provided.

Beneath the floor S there is a reservoir /6 for liquid overflow, which is preferably provided along both sides of the coating booth l and extends below the main part of the floor. As an alternative to such a reservoir 16, a liquid container in the form of an inclined surface which is inclined towards the center and which is constantly filled with liquid can be provided. In either case,
The overflowing liquid is transferred to a supply pipe 17 extending from a pump ig connected to a reservoir /'1 supplied from a drain trap 20.
normally supplied by Appropriate chemicals can be added to the water to break down or emulsify the paint, thereby reducing or eliminating its pasty properties.

Below the storage tank/6 and the inclined surface of the container, there is a separation chamber 21 for treating the air flow 22 contaminated with paint particles, and this air flow λ flows into the separation chamber 1l through the venturi 30. . Rebound wall, 2tI is Benju IJ,? o
It faces a discharge stream from the wall, 25, and directs the air toward the wall, where it is discharged as discharge air stream 23. A sloped bottom wall 27 is provided in the separation chamber, 2/, to collect the liquid and contaminant particles separated from the air in the separation chamber, 2/. Another bottom wall, 2g, slopes in the opposite direction to the bottom wall core and discharges the separated liquid and contaminants into the drain trap J (7).

FIG. 1 shows a Ventu IJ 3o with an asymmetrical construction, whereas symmetrical constructions are well known. With this asymmetric structure,
Venturi? The outlet portion of o is offset from the center plane, directing the air flow in one direction off the center plane. In a symmetrical construction, the outlet of the venturi can preferably be directed downwardly against the rebound plate or outwardly to either side of the central plane. Selection of such structure can be made according to factors such as available space and environment. Although only an asymmetric structure is shown in the illustrated embodiment, this invention is applicable to both structures. When applying a member that corresponds to a symmetrical structure, it is not necessary to be truly symmetrical;
It is within the skill of the art to make the members on one side with respect to the axis of symmetry longer or shorter with respect to the other side, and to have different angles of inclination.

Conventional outlet constructions therefore suffer from the disadvantages mentioned at the beginning of this document, namely the production of relatively large noises combined with the risk of sedimentation of paint particles, especially in the inlet section of the venturi 30. This makes it difficult or impossible to fit the separation chamber into existing facilities and requires a large amount of space for the separation chamber to be connected to the venturi.

Figure 2 shows the auxiliary floor portion of the coating booth 1, and the storage tank/6 for overflowing liquid has a pair of containers or pockets along the side edges of the auxiliary floor. teeth,
A wall without holes 3/, which is located under the Song left and converges on both sides of the central plane of the first exit t/b, sloping downwards towards each other;
32 on the upward facing overflow surface. In this case,
The center plane si of the outlet qB coincides with the center plane of the painting tooth in the longitudinal direction. A sloping wall? /, 32 terminate approximately at the outlet tI6 at the same height and are joined by a rounded outlet side wall 33 and a straight side wall 3tI, respectively. The rounded side walls 33 are convex and curved toward the center plane, but spaced a distance away from the center plane 51.

As shown, the lower end of the side wall 33 terminates at a large angle away from the center plane and is oriented downwardly at a slight slope. Straight side wall 3 is in/against the center plane
It is arranged at an angle between 0° and tio° and terminates adjacent to the central plane 5/ below the curve of the side wall 33 in a downwardly inclined guiding surface 3j. The guide surface 3 extends away from the central plane 5/ in the same direction as the end of the rounded side wall 33 and forms an exit neck 3g formed between the lower end of the side wall 33 and the guide surface 3S. There is. The outlet neck 3g has side walls 3', 3. ．． It is narrower than the spacing between 711 and relatively wide, as will be fully discussed later. Curved side wall 33G
-1, forms a smooth transition from the overflow surface of wall 3/ to outlet neck 3g via outlet I/-6, and side wall 3t
/, and the guide surface 3S surround the overflow surface to minimize the splitting of the flowing flow. Exit cervical,? Beyond g, the wall forming the guide surface 3S extends downwards with an inclination in the range from 0 to q&', preferably about 20 to the left relative to the horizontal plane. The extension of the guide surface 3 performs a function which will be explained in more detail later.

The exit neck 3g passes through the exit lock 6 to the wall, 7) and the guide surface 35.
This is effective for discharging the mixture flowing into the dispersion chamber tio formed during this period. In instant contact with the center plane 57ζ, the dispersion chamber t/-O is limited by the side wall 33, and the outside is a vertical rebound wall 39.
The lower end of the rebound wall 39 is limited by the wall 3/
It is connected to a bottom wall group 1 having an inclined surface facing in the same direction as the guide surface 3S and in the opposite direction to the guide surface 3S. Preferably, the bottom wall</
The slope of / is in the range lo0 to qli0, preferably about 200, with respect to the horizontal plane. An exit log is provided between the guide surface Js and the bottom wall L/-7. The first venturi of the loli is formed, and for this purpose the guide surface, ? The wall 3 terminates in the bottom wall 3, which cooperates with the bottom wall to concentrate the flow from the dispersion chamber lIo to the output log 7, and the output log 7 is a convexly curved wall. An outlet LI for the venturi is formed between the tItI and the 7 langes arranged at right angles to the bottom wall. forming a restricted throat tis.

Beyond the venturi throat aS, the bottom wall tI/ is a pool q
9, which collects fluid and contaminant particles emitted from the flow passing through the venturi throat. Such particles are emitted in the usual manner. The remaining air indicated by the arrow is the guide surface j3'c! : The water flows under the wall 32 toward the exit (not shown) in the same way as in the conventional structure described above.

It should be understood that the vertical length of the dispersion chamber qo increases as the length from the central plane S/ increases resulting in a decrease in air velocity. The rebound wall 39 reverses the flow of air so that heavy particles of liquid and contaminants are deposited on the rebound wall 39, and these deposited particles then spill over the rebound wall J9j and exit log 7, as shown by the arrows. can flow downwardly towards the venturi throat tIS to recombine with the flow through the venturi throat tIS. The tapered outlet neck 3g, which is the entrance to the dispersion chamber <10, produces a flow of arrow <zr that is concentrated in the mixture of liquid, air and contaminants. Flow LII
r extends in an arcuate shape along the guide surface 3S, and at a small (r↓ collision angle, the trowel collides with the rebound wall 3 at a position away from the exit neck 3, and the first exit < adjacent to Z7 Disperse and spray the flow of the part that has been sprayed.

The configuration shown in FIG. 2 ensures efficient achievement of the desired results in a wet separator of the type described. Since the first outlet t/, has a relatively wide free basin, and the second outlet has a correspondingly small free basin, the two outlets u/,... 14
Also, due to the large flow area formed between them, the flow of air through the device is controlled to produce good results. 1st
The outlet q6 forms a smooth transition around the side wall 33 without sharp edges or protrusions protruding into the air flow, and there is a relatively wide discharge opening in the outlet neck 3g, so that the It produces less noise, less than the noise produced by conventional equipment that can be practically compared. The restricted throat tIs of the second outlet 7 formed by the flange gutter causes a lot of noise generation due to the large pressure drop in the fast flow throat S. However, the increase in noise is achieved by highly efficient liquid atomization, which achieves separation of paint particles and other contaminants. Since the outlet roll 7 is provided away from the work area on the floor S of the coating booth L and is separated from the outlet t/-6 by the dispersion chamber θ, the outlet U? The noise generated in the painting booth is not transmitted to the painting booth where the workers work. The atmosphere in the dispersion chamber qO contains a large amount of liquid particles and contaminants, which forms a barrier to the transmission of noise through the dispersion chamber qO. As mentioned above, this effect is caused by IF\#' in the dispersion chamber G0.
Due to the dispersed spray of the M flow qt, it becomes high near the outlet q7.

The presence of the Venturi effect at the first outlet q increases the air velocity at this outlet v, causing the wall 3/.

Air will now carry the water droplets from the liquid film flowing from 32 to outlet LI/. Due to this Venturi effect, water droplets and contaminated air flowing through outlet V-6 are mixed,
Allows water droplets to collect pollutant particles in the air stream. Since there is a large acceleration of the airflow due to the large restriction in the throat of the venturi of the second exit log 7,
The water droplets conveyed are mostly in the form of mist and are very small, accounting for a very effective conveyance of the liquid that falls into the outflow log 7.

In this regard, it should be noted that 90% of the contaminants are easily separated.

Although the remaining g% can be separated with difficulty, the other remaining fractions are of great concern. Considering the air flow rate, the absolute amount of unseparated contaminants is significant. According to experiments,
The present invention is effective in removing these difficult contaminants and providing adequate noise damping and easy cleaning to maximize the effectiveness of the wet separator in all respects.

Regarding the flow tIg, it is noted that the arcuate flow is due to a decrease in the velocity of the airflow such that the particle carrying airflow against the guide surface 3 decreases as the distance from the exit neck 3g increases. Should. When the flow is dispersed and the liquid is atomized by collision with the wall, the water and contaminant particles flow over the surface as indicated by the arrows, and the separated air and atomized liquid flow inside the dispersion chamber. The guide surface 3S is therefore flooded with water particles separated from the air flow of the stream tig.

Obviously, the collision of the flows tl and t causes the atomized water droplets to bounce off the guide surface 3S, resulting in intense mixing of the water droplets, paint particles, other contaminants, and air near the second outlet q7. , this mixture is flowed through outlet 1-1q7 to achieve effective separation and at the same time eliminate noise from outlet log 7 to dispersion chamber qθ and from dispersion chamber qθ to the workspace of the paint booth/through outlet tIA. A cover is provided which acts to dampen the transmission. Therefore, this invention
This counteracts the increased noise production with improved transport of liquids and contaminants into the S air stream. Also, the throat part t1.
Since the angle of impingement of the flow tlg with respect to j is small, the noise generation due to such an impingement is minimized compared to the noise that results when the flow impinges on a surface at a large angle of qoo, for example. It should be noted that For this purpose, the guide surface 3S extends to intercept the flow LIg and prevents it from directly colliding with the bottom wall u/ beyond the outlet q7.

The flange u,2 is selectively placed at the outlet G77 to adjust the flow area of the throat qS. The h1 section is suitable for replacing the flange '12 with a large width or a small width, or by tilting the flange girder perpendicular to the bottom wall 9/J, or by changing its position relative to the opposing curved wall II. It can be done by etc. Adjustment of this electrical fault output may be necessary, for example, to stop more than seven operations or to make other changes in the work area as required to change the flow of ventilation exiting the work area through the outlet 36. It is suitable when the ventilation of the work area can be changed based on the following.

The invention also provides other advantages related to the separation of contaminants from air. In a spray painting booth,
It often happens that contaminants are concentrated in only seven parts of the paint booth.

In a normal wet separator, the wet separator in the heavily soiled area of the floor is not used up, whereas the separator in the less contaminated area is overused. In other words, the dirty flow through the outlet is neither homogeneous nor evenly distributed. In this invention, the dispersion chamber tio has a more homogeneous flow through the outlet log 7 based on a high degree of separation, the outlet tio
This allows a non-homogeneous stream 1 to follow the first outlet q4 to be thoroughly mixed in the dispersion chamber q0, resulting in a more homogeneous purification of the air discharged through I7.

It should also be noted that solvents and emulsifiers that can be added to overflow liquids in areas of high contamination are subject to surface tension forces that can quickly alter the ability of the flow to transport benevolent liquids. These partial changes can be solved and made equal by the presence of the dispersion chamber tio between the output rows uA and u7.

In the embodiment shown in FIG. 3, the overflow liquid reservoir 16
The upper column is the same as that shown in FIG. 2, except that it resembles the prior art reservoir/A shown in FIG. This type of storage tank/B is the top wall of the dispersion chamber θ, ? / on the wall in Figure 2, ? 2, the height of the dispersion chamber tIo increases more gradually than the increase shown in FIG. 2 as the distance from the central plane 5/ increases. In this case, the cypress 16 is arranged so that the wall where the overflowing liquid is concentrated beyond the weir at the top of the outlet q6 is connected to the curved side 3 of the outlet q6.
3 and the flat side 3'1.

The other parts of the apparatus are the same as shown in the second figure and are numbered the same.

FIG. 9 shows another embodiment similar to that shown in FIG. 3, but modified to accommodate a more restricted space and an auxiliary floor structure. It should be noted that the overflow liquid reservoir /4 is comparable to the reservoir 16 of FIG. 3, but does not extend as deep near the side edges of the auxiliary bed structure. Below the storage tank t6, the auxiliary floor structure does not extend over the entire width of the paint booth, so that the rebound wall 39 extends approximately to the distance between the sides of the paint booth and the central plane S/ of the outlet V, 6. Located in half.

The wall 39 defines the outer limit of the dispersion chamber aO, and in shortening the dispersion chamber aO, the outlet rod 6 has been modified to provide a large free flow area. Therefore, the side wall of exit '14, )J
, 3'l is wider than that of the embodiment of FIG. 3, and the outlet neck 3g is likewise larger than the outlet neck of FIG. In a large basin, the flow tll forms a short flow path and comes into contact with the guide surface 3S close to the center plane si. wall v3. tlti and corresponding flange q, 2
is located beyond the point of impingement of the flow lIg, so that the outlet V7 is close to the central plane 5/. Preferably, outlet q
The throat tis of 7 has the same restricted flow path as the throat lIS of the embodiment described above. The streams of short length <zr impinge near the outlet q'7, thereby providing the necessary dispersion and atomization of the flow and the formation of a sound-absorbing cover at the outlet q7.

Fig. q shows an embodiment in which the width of the bottom of the coating booth is limited, and Fig. S shows an embodiment in which the height of the bottom of the coating booth is limited. In this embodiment of the invention, the overflowing liquid reservoir /6 has a uniform depth from both sides of the coating booth to the outlet log 6 on the central plane Sl. Side parts 33, 3
'l is modified to reduce the height of the exit l, for which the guide surface 3S has a somewhat steeper slope than the rear part 3 which extends from the exit neck 3g to the exit formed by the throat ps. A raised front portion 36 is provided. Throat t15
It is understood that the airflow in the dispersion chamber 0 is not deflected into an S-shaped or a 2-shaped passage, as in the embodiments described above, since it faces the outlet neck 3K.

The exit of No. 3 is located on the wall facing Francida 2 at throat <Z&. It is formed by L/l/-. The flange λ is a flange t/ as a continuous part of the guide surface 3S.
It projects upwardly from the bottom wall q/ which extends beyond 2. The flow pg from the outlet neck 3g collides with the guide surface 3S adjacent to the throats p and t at a small collision angle, so that dispersion and atomization are achieved near the exit of the neck, resulting in effective noise reduction. A buffer cover is provided in addition to the required mixing at the inlet of the λth outlet. The bottom wall extends up to a reservoir 91, with the outlet conduit 5θ extending upwardly from the reservoir 9.

FIG. 6 shows another embodiment in which the passage through the dispersion chamber is provided with a plurality of inversions. To this end, the wet separator of the invention cooperates with a series of outlets, the first and last being in the form of a venturi to provide the required dispersion effect.

The intermediate outlet directs the flow to the first inversion section, which facilitates the initial separation of particles from the flow (which serves to direct the flow) and collect and remove it from the dispersion chamber before the flow passes through the final outlet. .

In FIG. 6, a work place where a plow can be carried out, designated as a painting booth 1, is provided with a grid-like floor and a passageway and supports that are elevated above the floor. The auxiliary floor part of the working area of the painting booth/is similar to the embodiment of FIG. ,! It has Wall J/,,3.
2 are concentrated towards the first outlet q4 of the series of outlets. Exit VX is concentrated on the side wall, L? , ,? '% and information surface,? An outlet neck 3 is formed between the wall 33 and the wall 33.
have or do g. In this embodiment, a selectively disposed flange 331 is provided on the outlet neck 3r to adjust the free passage area of the outlet neck 3 and to control the flow <tg caused by the flow through the outlet neck 3g. .

As in the embodiment of FIG. 2, the guide surface 35 is relative to the horizontal plane! It is inclined downwardly at an angle of r0~daS0, preferably about koS0. The guide surface 3S extends beyond the exit neck 3g by a considerable distance and connects the front and rear dispersion chambers GO, GO°.
A repelling wall to provide a second exit dividing into 79.
! : terminating in a cooperating upwardly cylindrical free end 3S1. The bottom of the previous dispersion chamber <10 is formed as a reservoir 76+, with a rebound wall, ? It receives liquid and contaminant particles flowing downward along the 9t. A passage to the subsequent dispersion chamber v o + is formed under the guide surface 3S, and the upper wall 3
．． 2 forms the above-mentioned overflow surface 7. The rear dispersion chamber /I0' increases in height as the distance from the middle IL'' plane 5/ increases, and the central exit hole 7 in the form of a venturi increases in height.
is provided, and wall 3/', which is the overflow surface of exit V7,
,? a' is a bench, one wall t/3. It is noted that it extends into the throat ttS formed between the rig and the flange g, 2 on the bottom wall glu.

Walls, 1/', , 3: l' are used for the overflow liquid flowing from the reservoirs on both sides. Preferably, the walls q3 of the venturi
is disposed at an angle of 100 to AO0 with respect to the vertical plane and ends in a convex curved wall V facing the flank λ. The bottom wall F/ extends for 9+ times, and this pool G
'9 is below the outlet conduit SO through which purified air is discharged.

As in the previous example I, the first outlet q4 has a relatively large free flow area and the finishing log 7 has a considerably smaller free flow area.

In this case, the front and rear dispersion chambers ao, 11. The dispersion chamber where o' is the outlet <4. <Z7.

In this example, the flow uy discharged from the outlet neck 3g
is curved upwardly of the guide surface 35 and hits the end 3 ';
A sound deadening cover is formed near the outlet formed between the guide surface 35 and the rebound wall 39. The enlarged space of the combined dispersion chamber also forms a sound deadening chamber from the final venturi throat p, t which passes through the dispersion chamber and returns to the working area of the paint booth/.

The tortuous flow of air through the dispersion chamber can separate liquid and solid particles from the flow as it forms opposite bends in the passage through the dispersion chamber. Particles separated from the flow as it turns around the guide surface 3j accumulate in a reservoir/61 from which they can be removed in the normal manner. The separated particles in the subsequent dispersion chamber qθ' are separated by the wall 3/'' for the overflow liquid.

3. Deposit on top of 2゛ and pass through the throat tIS to the bottom wall /
The soil flows into the reservoir qq. The upwardly curved end of the guide surface 35 ensures that the flow does not impinge directly on the reservoir 16" and avoids disturbances on the surface of the sump that would adversely affect the washing of contaminants in the reservoir 16". I have to.

The configuration of the reservoir /A'' which can supply liquid to the primary reservoir /A'' in conjunction with the reservoir I19 which can supply liquid to the auxiliary reservoir /A'' allows for effective treatment of overflow liquid. A different liquid addition to the overflowing liquid over each overflow surface may be required to more effectively separate contaminants from the flow. Similarly, it is known that fine atomization of the liquid particles in the throat VS is achieved when the temperature of the overflowing liquid is substantially lower than the temperature of the primary overflowing liquid.

The high velocity flow through the first coventuri produces a large pressure drop with maximum saturation of water vapor and air flow. The use of clean water facilitates condensation of water as the flow expands to the left of the outlet conduit, thereby further improving the separation of contaminants from the air.

The clean water of the outlet log 7 lowers the temperature of the discharged air, so that it is contained in the air, the filtrate is reduced, and the discharged air is effectively dehumidified. Dehumidification is particularly advantageous when air is circulated through the work area as shown in FIG. Before the air is reintroduced into the workplace, it must be filtered and warmed to the temperature required for the workplace. In this case, heating is performed by the i4 condenser S2 of the cooling circuit S3 of the heat pump S6,
This is done by an evaporator sq arranged to cool the water in the sump t19 of the final venturi outlet mechanism. Conditioning of the recirculated air takes place in a conditioner &,1 which has a filter and controls the temperature and humidity by selective discharge or injection of air from the atmosphere.

While it is pointed out that it is necessary to avoid impingement of the flow pg over the guide surface 3S, noise is not an important factor and there are advantages to the formation of this type of elongated impingement.

The various embodiments illustrated herein are not limiting, and the features of the various embodiments can be combined with each other to suit the particular operating conditions experienced by the device. Although the series of outlets shown in FIG. 6 has only the first and last outlets in the form of venturis, it is within the scope of the invention to provide intermediate venturi outlets which may have separate overflow mechanisms. Furthermore, the shape of the final outlet of FIG. 4 can also be used as the third outlet of the previously described embodiment.

Although specific embodiments of the present invention have been illustrated and described, the present invention is not limited to the above description, and various modifications and changes can be made within the scope of the claims.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional spray painting booth for spray painting automobile bodies with a conventional wet separator in the auxiliary floor part of the painting booth, and FIG. 2 is a cross-sectional view of a conventional spray painting booth for spray painting the body of an automobile, which has an inclined water flow surface according to the invention. FIG. 3 is a schematic cross-sectional view of the auxiliary floor part of a paint booth with a first embodiment of a separator; FIG. FIG. 7 is a view similar to FIG. 2 showing a third embodiment of a separator according to the invention for particular use in restricted and restricted locations; FIG. 5 is a view similar to FIG. FIG. 2 is a diagram similar to FIG. 2 showing a fifth embodiment of a separator according to the invention for use in a facility with a height of It is a schematic sectional view of a spray painting booth having an example in the auxiliary floor part. In the figure, the same reference numerals indicate the same or equivalent members. /: painting booth, S: floor, 6
: ceiling, 7: air nozzle, g: air curtain, /3: fan, /l,, /A': storage tank, /li: supply pipe, 7g:
pump, 19: sump, 20: drain trap, 2/: separation chamber 1.2q: rebound wall, 25: outlet, 27: bottom wall, 3
θ: Venturi 1. ,? / , 3t', ,tx
, , y, y': Wall 1.73°3: Side wall 1. ys,
, rs': Guide surface, riθ, ri01: Dispersion chamber, qλ: Flange, 4/S: Throat, da6゜I17: Exit, q9
:Tamari,! r/: central plane.

Claims (1)

[Claims] / Venturi-shaped outlet for contaminated conditioned air (Hiro6
), means (#,,3/
. In the wet separator to be purified, a sound-insulating dispersion chamber (aO. the first outlet has a substantially smaller free passageway than the outlet, such that the first outlet increases the velocity and mixing of the contaminated air and liquid passing through the outlet, and the dispersion chamber has a The second venturi-shaped outlet is designed to disperse the liquid and contaminant particles, and the second venturi-shaped outlet is designed to provide increased velocity and enhanced mixing of the passing air, thereby dispersing the liquid and contaminant particles downstream of the second outlet. A wet separator characterized in that the upper wall (31) of the dispersion chamber has an upper surface facing the working area (1), and the overflowing liquid covers the upper surface. means (tt, yq) for supplying an overflow liquid operable to flow from the top surface into a first outlet (ri 6), said first outlet being in the vertical f, (central plane (j/ ), a first side wall (, ?tI) that slopes downward toward the central plane, and a convex opposing side wall (33) that is curved toward the central plane, the convex side wall being opposite to the upper surface. to the outlet neck (3g), and the free space between the side walls is larger than the free space passing through the outlet neck.
Wet separator as described in section. 3 The first outlet has a vertical central plane and the outlet neck has sloped side walls to direct contaminated air and overflowing liquid laterally away from the central plane. (q6) is connected to the exit ``1 (kuku)'' of the first exit, and
The guide surface (3
11.2. Wet separator according to claim 11.2, having a guide surface S) which is inclined with respect to the horizontal plane and whose upper end forms the underside of the outlet neck (3g). 4. The wet separator according to claim 3, wherein the inclination of the goose guide surface is in the range of 50 to <zt' with respect to the horizontal plane. The left guide surface (3j) has a lower end wall curved towards the first outlet so as to form one side of the second venturi-shaped outlet (7). , wet separator according to item 3. 6 The dispersion chamber (t/, O) is provided just below the storage tank (16) and the wall (31), and the overflowing fluid is transferred to the outlet (L/, A).
] and has a vertical rebound wall (39) opposite the outlet neck (3g), at least a part of the bottom of the dispersion chamber being inclined downwardly towards the first outlet (7). Guide surface (3(. 3ri, rit, l/3., ?/', J, 2')
Claims JJJ; iI-',
wet separator. 7 The lower end of the rebound wall (,?q) is connected to the bottom slope (
7. Wet separator according to claim 6, wherein the ramp is on one side of the first bench-lily outlet. g The rebound wall (39) has a venturi-shaped outlet (tIV
) wall (ri3) and a curved wall (qg), the dispersion chamber having a guide surface (3j) extending from the first outlet to the first outlet and forming opposite sides of the first outlet. A wet separator according to claim 7, having the following. 9 At least seven venturi-shaped outlets are located at the throat (I
Wet separator according to claim 1, further comprising a selectively arranged flange (l/2) projecting into an opening perpendicular to the central plane to form one side of the central plane. 10 One venturi-shaped outlet is the throat (tli)
Wet portion 81&container according to claim 9, having 7 lunges C'12) L and opposite curved walls (tIV) to form opposite sides of the vessel. l/ The dispersion chamber has a bottom sump (/b', tIq) for separating dispersed particles from the flowing air and collecting liquid and contaminant particles separated from the air flowing within the dispersion chamber. Wet separator according to items 1 to /θ. /yu The first outlet (y6) is configured to produce a dispersive flow (pg) of a mixture of liquid, air and contaminants, the flow being directed into an upper flat curve adjacent to the first outlet. extending and impinging at least partially on the wall of the dispersion chamber adjacent to the first outlet at a small angle and fractionally mixing the flow components to simultaneously form a noise-damping cover at the inlet to the second outlet (q7); A wet separator as claimed in any one of claims 1 to 11, wherein the wet separator is distributed so as to: /3 Liquid overflowing on both sides of the first outlet (V7) (16
a first feed device adjacent to the second outlet (Li 7) to supply liquid (16I, Il, 9) A wet separator according to any one of claims 1 to 7.2, wherein the first outlet (LIA) comprises a dispersed flow ( <zg), the flow extends from the first outlet to the flat curve, and the dispersion chamber extends from the first outlet below the flow and includes a guide surface that divides the dispersion chamber into a post-emergence dispersion chamber. the guide surface terminates in an upwardly facing end to interrupt the flow and further disperse the flow to mix the components of the flow passing through the subsequent dispersion chamber; 74. A wet separator according to claims 1 to 73, wherein one outlet is provided in the rear dispersion chamber. Claim 7, wherein the dispersion chamber has an outlet neck for directing the flow, the second dispersion chamber having a vertical wall opposite the outlet neck, and a sump between the outlet neck and the wall.
Wet separator according to item 4'. //, a coating booth by means of a wet separator having a dispersion chamber (g θ, 110) with at least a series of outlets (q + !7) between which the final outlet of the series is remote from the first outlet; (1) A method for purifying conditioned air contaminated with solid or semi-solid pollutants emitted from a
The output [T, ] (4 (A) is mixed with the overflowing liquid in the dispersion chamber (vo,
qo') to disperse some contaminants and liquid in the passing air, and flow the air through the final outlet of the series of outlets to reduce the air and liquid to a velocity greater than the first air velocity. A method of purifying contaminated conditioned air consisting of a process that produces a large noise-producing pressure drop. 17 Forming the mixture from the first outlet into a "flow" and causing the flow to impinge on the wall of the dispersion chamber adjacent to the first outlet to disperse the flow and create a noise damping cover for the second outlet. The method of claim 1A, having: 7g Supplying overflow liquid from a separate mechanism to a seventh and final outlet, the mechanism at the final outlet being configured to provide a cooler liquid temperature than the temperature at the first outlet. Special M/r# with controlling process
i? The method according to any one of Items 1A and 7. /9 Recirculating the air exiting from the final outlet (LI7) into the coating booth (1) 7 and readjusting the recirculated air to the required temperature in the coating booth (1) The method according to any one of items 76 to ig. The evaporator (tg) is used to cool the liquid in the mechanism of the λth outlet (li7), which is readjusted by the condenser (5 pieces) of the λθ heat pump (ri6) and FfCr (e3). 27. The method of claim 79, wherein the workspace is a spray painting booth, the contaminants include paint particles, and the process includes adding an emulsifier to the overflow liquid to cover the equipment surface with paint particles. A method according to any one of claims 16 to 20.