JP4330843B2 - Gas-liquid contact device - Google Patents

Description

【００６２】
【表２】

【００６３】
【表３】

【００６４】
【発明の効果】
本発明に係る気液接触装置を用いると、水が散水手段の下面から略均一な流量で広範囲に分散して斜行ハニカムの上面に流下するため、効率よく気液接触を行うことができる。
【図面の簡単な説明】
【図１】本発明に係る気液接触装置の第１の実施形態を模式的に示す斜視図である。
【図２】図１においてＡ−Ａ線で切断した断面を模式的に示す断面図である。
【図３】本発明で用いる散水手段の実施形態を模式的に示す斜視図である。
【図４】水分配部の一部を切り欠いて模式的に示す斜視図である。
【図５】水分配部の一部を拡大して模式的に示す斜視図である。
【図６】水分配部の一部を上部孔空板側から見た模式的な平面図である。
【図７】上部透水孔の配列態様を説明する図である。
【図８】本発明で用いる散水管の一例を示す斜視図である。
【図９】本発明に係る気液接触装置の第２の実施形態の概略図である。
【図１０】本発明に係る気液接触装置の第２の実施形態を被処理空気の流れ方向に直交する側から見た概略図である。
【符号の説明】
１、１Ａ 気液接触装置
２ 散水手段
３ 斜交ハニカム
４ 受水パン（受水部）
５、５ａ₁、５ａ₂、５ａ₃、５ｂ₁、５ｂ₂、５ｂ₃、５ｃ₁、５ｃ₂、５ｃ₃、５ｄ₁、５ｄ₂、５ｄ₃５ 気液接触ユニット
６ 循環ポンプ（水循環手段）
７ 熱交換器
８ 接触後水冷却用の冷却水
９ 空気の流れ方向を示す矢印
１０ 送水管
１１ 補給水を示す矢印
１２ 接触用水
１３ 接触後水
１４ 筐体
１５ 排水管
１６ 水
１７ 供給水
２１、２２ 互いに隣接するコルゲート状シート
２３ 給水ダクト
３０ 水分配部
３１ 上部透水孔
３２ 上部孔空板
３３ 下部透水孔
３４ 下部孔空板
３５ 滞留部
３６、３６ａ、３６ｂ、３６ｃ 孔の重なり部分
４０ 散水管
４１ 筒状体
４２ａ、４２ｂ、４２ｃ 散水孔
５０ 枠体
５１ 壁面
１０１ 斜行ハニカム上面開口部
１０２ 斜行ハニカム後面開口部
１０３ 斜行ハニカム前面開口部
１０４ 斜行ハニカム下面開口部
１１１、１１２、１１３ 分岐送水管
１５１、１５２、１５３ 分岐排水管[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas-liquid contact device such as an air cooling device, an air cleaning device, and a humidifying device using a skewed honeycomb.
[0002]
[Prior art]
Conventionally, in a cooling tower, a gas-liquid contact tower, etc., there is known a method of spraying water from a sprinkling pipe to a gas-liquid contact unit in which a large number of gas-liquid contact plates are juxtaposed to flow water to the surface of the gas-liquid contact plate. Yes.
[0003]
For example, in JP-A-8-219684, as a method of spraying water from the water spray pipe to the gas-liquid contact means, a plurality of water spray holes are provided in the water spray pipe, and a plane or a position where a rod-like water flow discharged from the water spray hole hits is provided. A watering device for a cooling tower is disclosed in which a planar body having a curved surface is provided, and the water stream is spread in a film shape by the planar body and flows down to a gas-liquid contact means such as a filler. There is also known a method in which a water flow from a water spray pipe is applied to an eye plate having an infinite number of water spray holes, where the water flow is widened and water is allowed to flow down from the innumerable water spray holes.
[0004]
[Problems to be solved by the invention]
However, these devices and methods have a large variation depending on the location of the amount of water flowing down, and water cannot flow uniformly to the gas-liquid contact means, so the gas-liquid gas-liquid contact efficiency is not good.
[0005]
Accordingly, an object of the present invention is to provide a gas-liquid contact device having high gas-liquid contact efficiency.
[0006]
[Means for Solving the Problems]
In this situation, as a result of intensive studies, the present inventor has found that the gas-liquid contact device includes a slanted honeycomb, a gas-liquid contact unit having a predetermined water sprinkling means and a water receiving portion, and a blower means. The present inventors have found that the contact can be performed efficiently and have completed the present invention.
[0007]
  That is, the present invention provides a skewed honeycomb arranged such that both front and rear surfaces and upper and lower surfaces are open, contact air is introduced from the front surface opening, and discharged after contact is discharged from the rear surface opening, Sprinkling means for supplying contact water to the upper surface opening of the row honeycomb, a gas-liquid contact unit that receives water after contact discharged from the lower surface opening of the skew honeycomb, and the front surface of the skew honeycomb A gas-liquid contact device comprising a blowing means for introducing contact air into the opening and discharging the air after contact from the rear opening of the skewed honeycomb,
The watering means includes a frame body that is surrounded by a wall surface in the horizontal direction, a plurality of upper water-permeable holes, an upper hole plate that is disposed above the frame body without gaps, and a plurality of lower water-permeable materials. A water distribution part comprising a lower hole plate which is provided with a hole and is spaced apart from the wall surface at a lower portion of the frame and substantially parallel to the upper hole plate; and the upper hole plate With watering pipe to supply water toAnd
The area per one upper water-permeable hole is 10 to 95% of the area per one lower water-permeable hole,
The gas-liquid contact apparatus characterized by the above is provided.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
First, the gas-liquid contact apparatus in the 1st Embodiment of this invention is demonstrated with reference to FIG.1 and FIG.2. FIG. 1 is a perspective view schematically showing a first embodiment of a gas-liquid contact device according to the present invention, and FIG. 2 is a cross-sectional view schematically showing a cross section taken along line AA in FIG. . 1 and 2, 1 is a gas-liquid contact device, 2 is a sprinkling means, 3 is a skewed honeycomb, 4 is a water receiving pan (water receiving portion), 5 is a gas-liquid contact unit, and 101 is a top opening of the skewed honeycomb. , 102 is an opening in the rear surface of the skew honeycomb, 103 is an opening in the front surface of the skew honeycomb, and 104 is an opening in the lower surface of the skew honeycomb. In the first embodiment, the gas-liquid contact device 1 includes a gas-liquid contact unit 5 having a water sprinkling means 2, a skewed honeycomb 3 and a water receiving pan 4, and a blower means (not shown).
[0009]
The skewed honeycomb 3 used in the gas-liquid contact unit 5 has a honeycomb shape in which a plurality of corrugated sheets 21 and 22 (hereinafter also referred to as “corrugated sheets”) having a corrugated shape propagating in one direction are laminated. The corrugated sheets 21 and 22 to be laminated are laminated so that the wave propagation directions are obliquely intersected with each other, and the wave propagation directions of every two layers are substantially the same. It is a honeycomb-like body arranged in a direction.
[0010]
The skew honeycomb 3 is cut by four planes 101 to 104 perpendicular to the plane parallel to the corrugated sheets 21 and 22 to form a rectangular parallelepiped, and the cut plane is a wave propagation direction of the corrugated sheet. If the rectangular parallelepiped is placed with one of the cut surfaces 104 as the lower surface and the outermost layers 105 and 106 of the corrugated sheet as the left and right surfaces, respectively, The four surfaces of the front and rear surfaces 102, 103 and the upper and lower surfaces 101, 104 are all open on the honeycomb cells, and the left and right surfaces 105, 106 are closed with corrugated sheets. That is, the skew honeycomb 3 has a structure in which the front and rear surfaces 102 and 103 and the upper and lower surfaces 101 and 104 are opened. In addition, for example, the front and rear surfaces 102 and 103 of the cut surface are formed with cells extending obliquely upward and cells extending obliquely downward. The oblique angle (X in FIG. 1) with respect to the inflow and outflow directions (horizontal direction) of air when viewed from both the front and rear surfaces of the cell extending in the oblique direction is usually 15 to 45 degrees, preferably 25 to 35 degrees. Within the range. It is preferable that the oblique angle is within this range because the flow velocity is in an appropriate range and the gas-liquid contact efficiency is improved.
[0011]
In the skewed honeycomb 3, the angle at which every other wave propagation direction of the laminated corrugated sheets intersects (reference numeral Y in FIG. 1) is usually 30 to 90 degrees, preferably 50 to 70 degrees. is there. When the corrugated sheets are laminated so as to intersect within the above angle range, the contact air and the contact are obtained when the oblique angle (in FIG. 1, symbol X) is set to 15 to 45 degrees as described above. Since the area where the water is substantially in contact with the honeycomb cell is increased, the gas-liquid contact efficiency between the contact air and the contact water is increased, which is preferable. That is, as will be described later, in the present invention, the contact air is introduced from the front opening 103 of the skewed honeycomb 3, and the contact water is supplied from the upper surface opening 101 by the water spraying means 2 and corrugated in the skewed honeycomb. Since it penetrates into the sheet and slowly flows down on the very surface of the corrugated sheet, the aeration direction of the contact air and the flow direction of the contact water on the permeation wall maintain an appropriate angle, Contact efficiency is increased. In the present invention, contact air or contact water means air or water before gas-liquid contact and during gas-liquid contact, and post-contact air or post-contact water means air or water after gas-liquid contact. Means.
[0012]
The height of the cells of the skewed honeycomb used in the present invention, that is, the peak height of the cell showing the dimension between the corrugated peaks and valleys is usually 2.5 to 8.0 mm, preferably 3 to 5 mm. If the height of the cell is less than 2.5 mm, it is difficult to manufacture and the pressure loss increases, which is not preferable. In addition, if the height of the cell exceeds 8.0 mm, the gas-liquid contact efficiency decreases, which is not preferable.
[0013]
The cell width in the state of the corrugated sheet of the skewed honeycomb, that is, the cell pitch is usually 6 to 16 mm, preferably 7 to 10 mm. The dimension between the front opening and the rear opening of the skewed honeycomb, that is, the thickness (t) of the skewed honeycomb is usually 100 to 1000 mm, preferably 200 to 800 mm. If the thickness is less than 100 mm, the gas-liquid contact efficiency decreases, which is not preferable. If the thickness exceeds 1000 mm, the gas-liquid contact efficiency does not improve any more and the pressure loss increases, which is not preferable. In the present invention, the thickness of the skew honeycomb is not particularly limited as long as the total thickness is within the above range when a plurality of skew honeycombs are used. For example, when a skewed honeycomb having a thickness of 300 mm is used, three skewed honeycombs having a thickness of 100 mm may be stacked in the thickness direction so that the total thickness is 300 mm. If a skewed honeycomb is used as the gas-liquid contact means, the heat exchange rate per volume is higher than that of a fin coil that has been used in the past, so the thickness of the skewed honeycomb can be reduced, and the installation space of the apparatus is reduced. Can be reduced. Furthermore, the circulation amount of water is much smaller than that of the conventional fin coil, and a significant energy saving can be achieved.
[0014]
The sheet-like member that constitutes the skewed honeycomb has an uneven surface and is porous, so that the surface area of the element can be increased, and the contact area between water and air that permeates and flows down the element Is preferable from the viewpoint of increasing. As such a sheet-like member, for example, from one or more fillers or binders selected from the group consisting of alumina, silica and titania, and a fiber substrate such as glass fiber, ceramic fiber or alumina fiber The thing which becomes. Among these, those containing titania are preferable because the removal efficiency of acidic chemical contaminants is improved. The sheet-like member usually contains 60 to 93% by weight of filler or binder and 7 to 40% by weight of fiber base material, preferably 70 to 88% by weight of filler or binder and fiber base material. Contains 12-30% by weight. It is preferable that the blending ratio of the sheet-like member is within the above range because the water permeability and strength of the sheet-like member are high.
[0015]
The sheet-like member can be produced by a known method, for example, a paper made of glass fiber, ceramic fiber or alumina fiber is immersed in a slurry in which a binder such as alumina sol and a filler such as alumina hydrate are mixed. Then, it can be obtained by drying and corrugating, followed by drying and heat treatment to remove moisture and organic components. When silica or titania is contained in addition to alumina, for example, the blending amount of silica and titania is usually 5 to 40 parts by weight with respect to 100 parts by weight of alumina.
[0016]
Further, in the skew honeycomb, the thickness of the sheet-like member is usually 200 to 1000 μm, preferably 300 to 800 μm. Further, the porosity of the skewed honeycomb is usually 50 to 80%, preferably 60 to 75%. By setting the porosity within the above range, moderate permeability can be realized, and the gas-liquid contact efficiency between air and water can be increased. When the sheet-like member has the above thickness and porosity, the liquid-gas ratio and the water permeation rate are in an appropriate range, the gas-liquid contact efficiency between water and air is increased, and the strength is sufficient.
[0017]
The height of the skew honeycomb 3 is not particularly limited. However, when the gas-liquid contact device is a cooling device using cooling water as contact water, it is usually 200 to 800 mm, preferably 400 to 600 mm. If the height is less than 200 mm, the temperature of the water after contact flowing down to the lowest part of the skewed honeycomb, that is, the temperature of the cooling water after flowing down is still low, and it is not preferable because it is discharged without being effectively used as cooling water. On the other hand, if the height exceeds 800 mm, the difference between the temperature of the cooling water flowing down to the lowermost part of the skewed honeycomb and the temperature of the contact air becomes small, and the heat exchange efficiency at the lower part of the skewed honeycomb is lowered, which is not preferable. .
[0018]
As a method of forming the sheet-like member into a corrugated sheet, there is a method using a known corrugator in which a flat sheet is passed between a plurality of wide gears having corrugated irregularities that oscillate in the radial direction. Can be mentioned. As a method of forming the above skewed honeycomb from the obtained corrugated sheet, for example, first, the corrugated sheet is 100 mm long (thickness dimension after forming the skewed honeycomb) × 800 mm wide (width after forming the skewed honeycomb) A rectangular corrugated sheet is produced by arranging and cutting so that the wave propagation direction is 15 to 45 degrees with respect to one side of the rectangular shape with respect to a rectangular cutting die having a size of about the direction or height direction). Then, a method of arranging the obtained rectangular corrugated sheets so that every other wave propagation direction is oblique and adhering them is mentioned. In addition, when manufactured in this way, the thickness of one skewed honeycomb is the vertical length of the cutting die. For this reason, for example, when the thickness of the skewed honeycomb incorporated in one gas-liquid contact unit, that is, the dimension between the front opening and the rear opening of the skewed honeycomb is 300 mm, the length is 100 mm. When a skewed honeycomb having a thickness of 100 mm manufactured by a cutting die is used, three skewed honeycombs may be stacked in the thickness direction. In addition, when the size of one skewed honeycomb in the height direction or the width direction is insufficient, a plurality of skewed honeycombs may be stacked in the height direction or arranged in the width direction. In addition, in the case of using a plurality of such stacked layers or arranged side by side, the skewed honeycombs may or may not be bonded. In the case of not bonding, it is only necessary to arrange a plurality of skew honeycombs in a stacked or juxtaposed manner.
[0019]
Next, the watering means used for the gas-liquid contact unit 5 will be described with reference to FIGS. FIG. 3 is a perspective view schematically showing an embodiment of the watering means used in the present invention, FIG. 4 is a perspective view schematically showing a part of the water distribution part, and FIG. 5 is a water distribution. FIG. 6 is a schematic plan view of a part of the water distribution part as viewed from the upper hole plate side. In the figure, 30 is a water distribution part, 31 is an upper permeation hole, 32 is an upper perforation board, 33 is a lower permeation hole, 34 is a lower perforation board, 35 is a retention part, 40 is a water spray pipe, 50 is a frame, Reference numeral 51 denotes a wall surface constituting the frame. 3 to 6, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.
[0020]
In FIG. 3, the water sprinkling means 2 includes a water distributor 30 and a sprinkler pipe 40 disposed above the water distributor 30. The water distribution unit 30 includes a frame 50 surrounded by a wall surface 51 in the horizontal direction, an upper perforated plate 32 disposed in the frame 50 without a gap between the wall surface 51, and a lower portion of the upper perforated plate 32. The lower perforated plate 34 is disposed in the frame body 50 so as to be spaced apart from the wall surface 51 and spaced substantially parallel to the upper perforated plate 32.
[0021]
The frame 50 discharges the entire amount of water supplied from the upper perforated plate 32 from the lower perforated plate 34. As the material of the frame body 50, a material that does not transmit or permeate water is used, and examples thereof include stainless steel, aluminum, copper, and the like. Of these, stainless steel is preferred because metal ions are unlikely to elute in water. The form of the frame body 50 is not particularly limited. For example, the frame body 50 has an opening in the vertical direction other than the shape in which the vertical direction is open as shown in FIG. In addition, there is one in which the arrangement of the wall surface 51 forms a circle when viewed from above. The upper portion of the frame 50 may remain open as shown in FIG. 3, but a lid or the like may be provided on the open portion as appropriate so that dust or the like does not enter the water sprinkling means.
[0022]
As shown in FIG. 4, a plurality of upper water permeable holes 31 are formed in the upper hole empty plate 32. The upper water permeable hole 31 allows the supply water 17 supplied from the water spray pipe 40 to pass downward. The number of the upper water permeable holes 31 is not particularly limited because it differs depending on the area of the upper hole empty plate 32 and the amount of supplied water. However, if the total area of the upper water permeable holes 31 is the same, the larger number is from the water distributor. The discharged water is preferable because it is easy to disperse. In addition, as a shape of the upper water permeable hole 31 used by this invention, it is not limited to circular as shown in FIG. 4, For example, an ellipse and an ellipse are mentioned. Among these, an elliptical shape is preferable because it is less affected by surface tension and has good water permeability. Moreover, the shape of the upper water-permeable hole 31 can be used combining 1 type, or 2 or more types, such as circular shape. For example, the circular upper water-permeable holes 31 are formed in a line at a constant pitch, and the oval upper water-permeable holes 31 are formed in a line at a constant pitch adjacent to the circular upper water-permeable holes 31. It may be formed alternately.
[0023]
The diameter of the upper water-permeable hole 31 is usually 1 to 5 mm, preferably 1 to 3 mm when the hole shape is circular. In addition, when the hole has a shape other than a circle, the diameter of the hole when converted into a circle having the same area may be set in the above range. If the size of the upper water permeable hole 31 is less than 1 mm, it becomes difficult for water to pass through, and if it exceeds 5 mm, the dispersibility of water tends to deteriorate.
[0024]
The arrangement form of the upper water-permeable holes 31 is not particularly limited. For example, the upper water-permeable holes 32 are drilled at a constant pitch in one direction or two or more directions of the longitudinal direction of the upper hole hollow plate 32 and the direction having a predetermined angle with the longitudinal direction. It may be made or may be made at random. Further, when the upper water permeable holes 31 are formed at a constant pitch in two or more directions, a so-called lattice shape or zigzag shape may be used. Here, as shown in FIG. 7 (a), the lattice shape is formed at a constant pitch in at least two substantially orthogonal directions so that the four nearest upper water-permeable holes 31a, 31b, 31d, and 31c form a substantially square shape. As shown in FIG. 7 (b), the staggered pattern means that the three upper water-permeable holes 31e, 31f, 31g closest to each other form a vertex of a substantially equilateral triangle. It means a mode of drilling at a pitch. The zigzag shape is preferable because the upper water-permeable holes 31 can be easily formed uniformly in the upper hole empty plate 32.
[0025]
When the upper water permeable holes 31 are formed with a constant pitch in at least one direction, the size of the pitch in the direction having the minimum pitch width is usually 1 to 10 mm, preferably 1.5 to 5 mm. is there. The pitch in the direction having the minimum pitch width is, for example, when the arrangement form of the upper water permeable holes 31 is a lattice shape as shown in FIG. It means a pitch formed by two adjacent upper water-permeable holes 31 such as 31a and 31b of the holes 31, and is formed by two upper water-permeable holes 31 in a diagonal direction, such as 31a and 31d. This means that the pitch is not included. It is preferable that the pitch of the upper water permeable holes 31 is in the range because water dispersibility is good. If the pitch of the upper water permeable holes 31 exceeds 10 mm, the water dispersibility tends to deteriorate, which is not preferable.
[0026]
The material of the upper hole plate 32 is the same as that of the frame 50. The thickness of the upper perforated plate 32 is usually 0.3 to 3.0 mm, preferably 0.5 to 2.0 mm. It is preferable that the thickness is within this range because it is easy to process.
[0027]
The upper perforated plate 32 is disposed in the frame body 50 without a gap between the upper wall plate 32 and the wall surface 51. Here, the arrangement of the upper perforated plate 32 without a gap means that the water supplied onto the upper perforated plate 32 passes through only the upper water permeable hole 31. By arranging the upper perforated plate 32 in this way, it becomes possible to control the water to stay in the space between the upper perforated plate 32 and the lower perforated plate 34, and the water is distributed from the water distribution unit 30. The dispersibility of the contact water can be improved. As an aspect in which the upper perforated plate 32 is disposed on the frame 50, for example, the upper perforated plate 32 and the frame 50 manufactured as separate members are pressure-bonded or bonded via packing or the like. Examples include an aspect and an aspect in which the upper perforated plate 32 and the frame body 50 are manufactured as a single unit.
[0028]
The lower perforated plate 34 is the same as the upper perforated plate 32. The material and thickness of the lower perforated plate 34, the number, size, and arrangement of the lower water permeable holes 33 are the same as those of the upper perforated plate 32. It is the same. Further, the mode in which the lower hole plate 34 is arranged in the frame 50 without a gap between the wall surface 51 and the upper hole plate 32 is the same.
[0029]
The upper hole plate 32 and the lower hole plate 34 are spaced apart from each other in substantially parallel. For this reason, as shown in FIG. 5, the water distribution section 30 has a distance L between the upper hole plate 32 and the lower hole plate 34 as the height, and the upper hole plate 32 and the lower hole plate 34. And the residence part 35 enclosed by the frame 50 is formed. In the present invention, the separation distance L is usually 0.1 to 2.5 mm, preferably 0.5 to 2.0 mm. When the separation distance L is within this range, water stays in contact with the upper perforated plate 32 and the lower perforated plate 34 of the staying part 35 and flows down from the lower permeation hole 33 of the water distributing part 30. The amount of water can be made substantially uniform throughout the water distributor 30 and the dispersibility of the contact water flowing down from the water distributor 30 is good. If the separation distance L exceeds 2.5 mm, it is difficult for water to flow uniformly, and if it is less than 0.1 mm, it is difficult for water to move between the upper hole plate 32 and the lower hole plate 34. Therefore, it is not preferable respectively.
[0030]
In the water distribution unit 30, it is preferable that the pitch of the upper water-permeable holes 31 and the pitch of the lower water-permeable holes 33 in the same direction in the water distribution unit 30 are different. Here, the same direction in the water distribution unit 30 means a direction in which the direction in the surface of the upper hole plate 32 and the direction in the surface of the lower hole plate 34 are the same. As such a direction, for example, the longitudinal direction common to the upper hole plate 32 and the lower hole plate 34, the surface of the upper hole plate 32 or the surface of the lower hole plate 34, and the longitudinal direction For example, a direction having a predetermined angle such as 60 degrees or 90 degrees may be used. Thus, it is preferable that the pitch of the upper water-permeable holes 31 and the pitch of the lower water-permeable holes 33 are different because water sufficiently stays in the stay part 35 and dispersibility of the water flowing down from the water distribution part 30 is improved. Further, it is not necessary that the pitches of the upper water-permeable holes 31 and the pitches of the lower water-permeable holes 33 are all different, and it is sufficient that the pitches are different in at least one direction.
[0031]
In the water distribution part 30, when the sizes of the upper water-permeable holes 31 are substantially the same and the sizes of the lower water-permeable holes 33 are substantially the same, the area per one of the upper water-permeable holes 31 is the same. If the area per one of the lower water permeable holes 33 is different, the dispersibility of the water flowing down from the water distributor 30 is improved, which is preferable. The area of the upper water-permeable holes 31 is 10 to 95%, preferably 20 to 50% of the area of the lower water-permeable holes 33. As described above, it is preferable that the area per one of the upper water permeable holes 31 is smaller than the area per one of the lower permeable holes 33 because the dispersibility of the water flowing down from the water distributing unit 30 is improved.
[0032]
Further, the water distribution unit 30 has a different pitch between the upper water-permeable holes 31 and the pitch of the lower water-permeable holes 33, and the area of each upper water-permeable hole 31 is in the above range than the area of each of the lower water-permeable holes 33. It is preferable that the inside is small so that the dispersibility of the water flowing down from the water distributor 30 is further improved.
[0033]
In the present invention, as shown in FIG. 5 or FIG. 6, the water distribution unit 30 has a vertical direction between the upper water permeation hole 31 and the lower water permeation hole 33 when the water distribution unit 30 is viewed from the upper hole empty plate 32 side. A hole overlapping portion 36 is formed in a part of each of the upper water-permeable hole 31 and the lower water-permeable hole 33. Here, forming in a part of each of the upper water-permeable hole 31 and the lower water-permeable hole 33 means that all the overlapping parts 36 of the vertical holes completely coincide with all of the upper water-permeable holes 31 or all of the lower water-permeable holes 33. It means to form so that there is no. For example, when the upper water permeable hole 31 and the lower water permeable hole 33 are formed in exactly the same form, the upper hole vacant plate 32 and the lower hole vacant plate 34 are connected to the upper hole vacant plate 32 side or the lower hole vacant plate 34 side. From the viewpoint of arrangement, when the upper water-permeable hole 31 and the lower water-permeable hole 33 are completely overlapped with each other, it is not preferable because all the overlapping portions 36 of the holes completely coincide with all the upper water-permeable holes 31 and all the lower water-permeable holes 33. . However, when the upper hole plate 32 and the lower hole plate 34 are arranged so as to be shifted, all the overlapping portions 36 of the holes may completely coincide with the whole upper water passage hole 31 or the whole lower water passage hole 33. Since it disappears, it is preferable.
[0034]
In the present invention, the total area of the overlapping portions 36 of the holes is 67% or less of the total hole area of the hole plate with the smaller total hole area of the upper hole plate 32 or the lower hole plate 34, preferably 5 It is desirable to set it to ˜40%. Here, the total area of the hole overlapping portions 36 means the total value of all the hole overlapping portions such as the hole overlapping portions 36a, 36b, 36c shown in FIG. The total hole area is the total area of the upper water-permeable holes 31 in the upper hole plate 32 or the total area of the lower water-permeable holes 33 in the lower hole plate 34. In the present invention, when the ratio of the total area of the overlapping portion 36 of the holes to the total hole area of the smaller hole perforated plate having the smaller total area of the upper water-permeable holes 31 or the lower water-permeable holes 33 is within the above range, water is supplied. Since the water can be sufficiently retained in the retention part 35, water can be allowed to flow down from the water distribution part 30 with good dispersibility, which is preferable.
[0035]
The water sprinkling pipe 40 supplies water from the water sprinkling holes to the upper hole empty plate 32 of the water distribution section 30, and the shape and the like are not particularly limited as long as water can be supplied. In this way, a cylindrical body 41 having water spray holes 42 is used. Further, the shape and arrangement of the water spray holes 42 are not particularly limited as long as they are appropriately determined depending on the amount of water flowing down and the range of water spray. For example, the surface of the cylindrical body 41 as shown in FIG. A row of water spray holes 42a, a row of water spray holes 42b and a row of water spray holes 42c on the surface of the cylindrical body 41 as shown in FIG. 8B, and a water spray hole 42b and a water spray hole 42c. Are drilled so that they are arranged in a staggered manner. In the present invention, the water spray holes are preferably formed at a constant pitch. The pitch of the sprinkling holes may be appropriately selected depending on the flow rate of water inside the sprinkling pipe and the amount of water flowing down, and is not particularly limited, but is usually 10 to 70 mm. Further, the size of the watering holes is not particularly limited for the same reason as the pitch, but is usually 1 to 5 mm.
[0036]
In the watering means 2 shown in FIG. 3, the frame body 50 constituting the water distribution unit 30 is extended upward so as to be able to surround the watering pipe 40 and extends below the lower perforated plate 34. However, the upper limit of the frame 50 may be at least flush with the upper hole empty plate 32 so that the staying portion 35 can be formed, and the lower limit of the frame 50 is at least the lower hole so that the staying portion 35 can be formed. It only needs to be flush with the empty plate 34. In addition, when the upper limit of the frame 50 is extended to the upper part from the upper surface of the upper perforated plate 32, even when there is a lot of water flowing down from the sprinkling pipe 40, the upper limit wall portion 51 of the frame 50 is blocked. Therefore, it is preferable because the water can flow down from the water distributor 30 at a substantially constant flow rate without being affected by the flow rate change of the water flowing down from the sprinkling pipe 40. In addition, the water distribution unit 30 prepares a unit composed of the frame body 50, the upper hole plate 32, and the lower hole plate 34 in advance, and stores this unit alone or together with the water spray tube 40 in another housing. The watering means 2 may be formed by Moreover, it is preferable that the watering means 2 can adjust water quantity.
[0037]
The water receiving portion 4 used in the gas-liquid contact unit 5 receives the water after contact discharged from the lower surface opening 104 of the skewed honeycomb 3. Although it does not specifically limit as a form of the water receiving part 4, For example, the gutter-shaped water receiving pan etc. which are shown in FIG. 3, etc. are mentioned, and the water receiving part 4 discharges water after the contact outside the water receiving part 4 A discharge pipe 41 may be provided. The gas-liquid contact unit 5 is usually fixed by being incorporated in a frame (not shown). At this time, it is preferable that a small gap be formed between the water supply duct 23 and the upper surface opening 101 of the skewed honeycomb because water supply can be uniformly dispersed throughout the upper surface opening 101 of the skewed honeycomb. In addition, it is preferable to arrange the lower surface opening 104 and the water receiving portion 4 of the skewed honeycomb as close as possible to save space.
[0038]
The gas-liquid contact device 1 further includes blower means for introducing contact air into the front opening 103 of the skewed honeycomb 3 and discharging cooling air from the rear opening 102 of the skewed honeycomb 3. As a ventilation means, the air blower provided with the fan etc. are mentioned, for example. The gas-liquid contact device 1 is preferably provided with a water circulation means (not shown) for supplying water after contact to the water spray means 2 because the contact water that has flowed down the skew honeycomb 3 can be reused as contact water. An example of the water circulation means is a circulation pump. Further, if the gas-liquid contact device 1 is provided with a water reprocessing means (not shown) for processing the water after contact so that it can be reused, the water after contact flowing down the skewed honeycomb 3 can be reused as contact water. preferable. Examples of the water reprocessing means include cooling means such as a heat exchanger. Furthermore, the gas-liquid contact device 1 is preferably provided with a water circulation means and a water reprocessing means because the water after contact flowing down the skew honeycomb 3 can be reused as contact water.
[0039]
Next, a method of using the gas-liquid contact device in the first embodiment will be described with reference to FIGS. 1 to 2 by taking as an example the case where the gas-liquid contact device is a cooling device. First, the water 16 is supplied to the sprinkling pipe 40 of the sprinkling means 2, and the supply water 17 flows down from the sprinkling holes 42 of the sprinkling pipe 40 onto the upper perforated plate 32 constituting the water distribution plate 30. The supply water 17 spreads and stays on the upper perforated plate 32 and passes through the upper water-permeable hole 31 to fill the entire staying portion 35, and the contact water 12 flows from each hole of the lower water-permeable hole 33 of the lower perforated plate 34. It flows down in a wide range at a substantially uniform flow rate, and is supplied to the upper surface opening 101 or the like of the skewed honeycomb 3. At this time, the supply water amount of the contact water 12 is appropriately adjusted so that the entire skewed honeycomb 3 is wet. Next, contact air is introduced from the front opening 103 of the skewed honeycomb 3 in the direction of the arrow 9 in FIG. In the cells in the skewed honeycomb 3, the contact water 12 flowing down and the introduced contact air are in direct gas-liquid contact. At this time, the contact air is cooled by the contact water 12, and when a chemical contaminant or the like is present in the contact air, the chemical contaminant or the like is taken into the contact water 12. The contact water 12 warmed by heat exchange and possibly taking in chemical pollutants becomes the post-contact water 13 after flowing down the oblique honeycomb 3 and moves to the water receiving portion 4. The water 13 after contact in the water receiving section 4 is supplied to a heat exchanger through a drain pipe 41 with a circulation pump (not shown) and cooled to a predetermined temperature. The cooled water 13 after contact is again supplied to the water spray means 2. Supplied and reused as contact water 12. On the other hand, cooled post contact air is obtained from the rear opening 102 of the skewed honeycomb 3.
[0040]
The method of using the gas-liquid contact device according to the first embodiment uses a gas-liquid contact unit including a skewed honeycomb in which contact air and contact water are in direct contact, and uses a specific watering means. The liquid contact efficiency is good, the liquid gas ratio is small, the pressure loss is small, space and energy can be saved, and the cost is low.
[0041]
In the gas-liquid contact device of the present invention, at least one gas-liquid contact unit 5 can be used. As an arrangement mode of the gas-liquid contact unit 5 in this case, for example, an arrangement in which a plurality of the honeycombs 3 are arranged in the vertical direction (multi-stage arrangement), and an arrangement in which a plurality of arrangements are made in the flow direction of the contact air (multi-row) Arrangement), a mode in which a plurality of the honeycombs 3 are arranged in the width direction, and a mode of composite arrangement in which one or more of these arrangements are combined. The vertical direction of the skewed honeycomb 3 is a direction connecting the upper surface opening and the lower surface opening of the skewed honeycomb 3, and the flow direction of contact air is the front opening and the rear surface opening of the skewed honeycomb 3. It is a direction to connect, and the width direction of the skewed honeycomb 3 is a direction substantially orthogonal to the vertical direction and the flow direction of the contact air. Therefore, a gas-liquid contact device using a plurality of gas-liquid contact units 5 will be described as a second embodiment with reference to FIG. 9 and FIG. FIG. 9 is a schematic view of a second embodiment of the gas-liquid contact device according to the present invention, and FIG. 10 shows the second embodiment of the gas-liquid contact device according to the present invention from the side orthogonal to the flow direction of the air to be treated. FIG. In FIG. 10, a gap is observed between the adjacent skewed honeycombs in the flow direction of the contact air, but this is for easy understanding of the drawing. The part 102 and the front opening 103 of the oblique honeycomb behind the part 102 are in contact with or close to each other.
[0042]
In the gas-liquid contact device according to the second embodiment, in FIGS. 9 and 10, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, description thereof is omitted, and only differences are mainly described. To do. 9 and 10 are different from the first embodiment shown in FIGS. 1 and 2 in that twelve gas-liquid contact units 5 are used, arranged in three stages in the vertical direction, and in the flow direction of the contact air. There are four rows, and a post-contact water system and a pre-contact water system as a circulation system. That is, in the second embodiment, the gas-liquid contact device 1A has the first row from the front in the flow direction of the contact air, and the gas-liquid contact unit 5a from the top in the vertical direction.₁5a₂5a_ThreeNext, the second row in the same direction is the gas-liquid contact unit 5b from above in the vertical direction.₁5b₂5b_ThreeThen, the third row in the same direction is the gas-liquid contact unit 5c from above in the vertical direction.₁5c₂5c_ThreeNext, the fourth row in the same direction is the gas-liquid contact unit 5d from above in the vertical direction.₁5d₂5d_ThreePlace. Further, the water circulation system includes a water circulation means 6 for supplying post-contact water discharged from the water receiving section 4 through the discharge pipe 15 to the sprinkling means 2 through the water supply pipe 10, and cooling for cooling the post-contact water as a water reprocessing means. Means 7.
[0043]
The branched water supply pipes 111, 112, and 113 that branch from the water supply pipe 10 and collectively supply water for each stage are the upper gas-liquid contact unit 5a.₁5b₁5c₁5d₁Water spray means 2, 2, 2, 2, middle gas-liquid contact unit 5a₂5b₂5c₂5d₂Watering means 2, 2, 2, 2 and lower gas-liquid contact unit 5a_Three5b_Three5c_Three5d_ThreeAre connected to the watering means 2, 2, 2, 2 respectively. On the other hand, the upper gas-liquid contact unit 5a₁5b₁5c₁5d₁Water-receiving part 4, 4, 4, 4, middle gas-liquid contact unit 5a₂5b₂5c₂5d₂Water receiving parts 4, 4, 4, 4 and lower gas-liquid contact unit 5a_Three5b_Three5c_Three5d_ThreeAre connected to the branch drain pipes 151, 152, 153 of the drain pipe 15, respectively, and collects the waste water for each stage.
[0044]
In each gas-liquid contact unit 5, a plurality of the skew honeycombs 3 may be arranged in the width direction. That is, the skewed honeycomb 3 may be in a side-by-side form of divided skewed honeycombs. In addition, the installation form of the individual gas-liquid contact units 5 in the gas-liquid contact apparatus 1A is not particularly limited, and the gas-liquid contact units 5 in the first embodiment are stacked, for example, in the vertical direction and arranged in the front-rear direction. The method of fixing on a frame is mentioned. In this case, the width in the front-rear direction of the water receiving portion 4 is approximately the same as the thickness of the skewed honeycomb 3, and the rear opening 102 of the front skewed honeycomb and the front opening of the skewed honeycomb behind it when assembled in the front-rear direction. It is preferable from the viewpoint of space saving that the portion 103 is in contact with or close to the portion 103.
[0045]
As in the first embodiment, the gas-liquid contact device 1A may discard the water 13 after contact with the water receiving unit 4 without providing a circulation pump or a heat exchanger, A pure water purifier for removing impurities may be incorporated. Moreover, it is preferable that the gas-liquid contact unit 5 is housed in the wall case 14 on both the left and right sides and the upper and lower sides so that the contact air passes only through the front opening of the skewed honeycomb 3. . Although it does not specifically limit as a form of the housing | casing 14, Since a thermal efficiency is high, it is preferable that there is no clearance gap between a gas-liquid contact unit and a housing | casing at all. Further, it is preferable in terms of blowing efficiency that the discharge port of the blower and the front opening of the housing 14 are connected by a duct and the contact air is supplied through the duct.
[0046]
Next, the usage method of the gas-liquid contact apparatus of 2nd Embodiment is demonstrated with reference to FIG.9 and FIG.10 for the case where a gas-liquid contact apparatus is a cooling device as an example. First, as in the first embodiment, the contact water 12 is dispersed in a wide range at a substantially uniform flow rate from each hole of the lower water permeation hole 33 of the sprinkling means 2, and the upper four pieces and the middle four pieces. And it supplies simultaneously to each upper surface opening part 101 of the four skewed honeycombs 3 of a lower stage. At this time, the amount of water supplied and the watering method of the contact water 12 are appropriately adjusted so that the entire twelve skew honeycombs 3 are wet. Next, contact air is introduced in the direction of the arrow in FIG. 9 from the entire openings 103 of the three oblique honeycombs 3 in front by a blower (not shown). In the cells in the twelve oblique honeycombs 3, the contact water 12 flowing down and the contact air introduced are in direct gas-liquid contact, the contact air is cooled, and chemical contamination occurs in the contact air. When a substance or the like is present, the chemical pollutant or the like is taken into the contact water 12. The contact water 12 heated by heat exchange and possibly taking in chemical contaminants becomes water after contact when it has flowed down the respective slanted honeycombs 3 and moves to the water receiving part 4. The water after contact in the water receiving section 4 is supplied to the heat exchanger 7 by the circulation pump 6 through the branch drain pipes 151, 152, 153 and the drain pipe 15 arranged for each stage and cooled to a predetermined temperature. Then, the cooled post-contact water 13 is supplied again to the water spraying means 2 and reused as the contact water 12. On the other hand, the oblique honeycomb 5d in the last row₁5d₂5d_ThreeFrom the rear opening 102, cooled post-contact air is obtained.
[0047]
According to the gas-liquid contact device in the second embodiment, in addition to the same effect as the gas-liquid contact device in the first embodiment, when the gas-liquid contact device is a cooling device, it is By using a plurality of stages, the height of one skewed honeycomb can be shortened, and the temperature of the contact water remains low even below the skewed honeycomb, so that the thermal efficiency is improved. Furthermore, the flow velocity of the contact air can be increased by providing a plurality of rows in the flow direction of the contact air. Therefore, space and energy can be saved.
[0048]
In the present invention, the contact air is not particularly limited. In addition to clean air, air containing fine chemical contaminants that pass through the stitches of a high performance (ULPA) filter can also be used. Examples of chemical pollutants include inorganic metal elements such as sodium, potassium, calcium, and boron, anions such as fluorine ion, chloride ion, nitrate ion, nitrite ion, sulfate ion, and sulfite ion, and ammonium. And cations such as ions.
[0049]
In the gas-liquid contact device according to the present invention, the contact air and the contact water are in direct contact with each other, so that these chemical contaminants can be taken into the contact water to obtain clean post-contact air. In addition, when the amount of chemical pollutants in the contact air is large, as a means for removing chemical pollutants in the water after contact between the water receiving unit 4 and the water sprinkling means 2 as necessary, for example, It is preferable to use a dewatering apparatus incorporating an ion exchange resin or the like because the contact water can be kept clean.
[0050]
Although it does not specifically limit as temperature of to-be-processed air, For example, it is 20 degreeC or more, Preferably it is 25 degreeC or more, More preferably, it is 30 degreeC or more. The higher the temperature of the contact air, the better because generally the thermal efficiency is improved. Further, the temperature of the contact water in the upper surface opening 101 of the skewed honeycomb supplied to the gas-liquid contact unit 5 is usually 7 to 10 ° C., and in the lower surface opening 104 of the skewed honeycomb arranged in the first row. After contact, the temperature is usually 2.5 ° C. or more, more preferably 5.0 ° C. or more lower than the water temperature. It is preferable to operate the apparatus under such conditions because the thermal efficiency becomes high.
[0051]
In the present invention, the liquid gas ratio L / G between the supply amount of contact water and the supply amount of contact air per gas-liquid contact unit._400-200Is usually 0.1 to 0.5 kg / kg, preferably 0.2 to 0.4 kg / kg. Where L / G_400-200Is the weight ratio of the amount of supplied water to the amount of supplied air per unit time when the height of the slanted honeycomb in the gas-liquid contact unit is 400 mm and the thickness is 200 mm. The weight ratio L / G of the supplied water amount to the supplied air amount per unit time per skewed honeycomb when the size per skewed honeycomb is not 400 mm in height and 200 mm in thickness is L / G_400-200The value decreases in inverse proportion to the increase in height per skewed honeycomb and increases in proportion to the increase in thickness. For example, L / G_400-200Is 0.3 mm, when the height of one skewed honeycomb is 800 mm and the thickness is 200 mm, L / G of the skewed honeycomb is 0.15, and the height is 400 mm and the thickness is 600 mm. L / G is 0.9. In the present invention, since the gas-liquid contact efficiency is good, the gas-liquid contact can be sufficiently achieved even if the liquid gas ratio is small as in the above range.
[0052]
In the case of using a plurality of gas-liquid contact units, the number of gas-liquid contact units is not limited to the above embodiment, and may be determined as appropriate. For example, fan power and contact air passing through a skewed honeycomb may be used. The required opening area (Ao) is obtained from the space velocity and may be set to a number satisfying Ao. The space velocity of the contact air at this time is, for example, 1.5 to 3.0 m / sec. Further, the watering means and the water receiving part may or may not be provided independently in each gas-liquid contact unit. That is, a plurality of gas-liquid contact units arranged in the width direction may share the water sprinkling means or the water receiving part at each stage. For example, when the gas-liquid contact units are formed in two rows in the width direction of the front opening of the skewed honeycomb and three steps in the height direction, the water spray means and the water receiving portion in each step are arranged in two rows in the width direction. You may share with a gas-liquid contact unit. Thus, it is preferable to share the watering means at each stage because the cost can be reduced.
[0053]
The gas-liquid contact device according to the present invention can be used, for example, as an air or water cooling device, an air cleaning device or a humidifying device in an office building, a hospital, or a production factory.
[0054]
【Example】
Next, the present invention will be described more specifically with reference to examples, but the present invention is not limited thereto.
[0055]
Example 1
A stainless steel plate having a length of 1020 mm, a width of 200 mm and a thickness of 1.0 mm is provided with holes having a diameter of 1 mm in three directions 31e-31f, 31f-31g and 31g-31e as shown in FIG. An upper perforated plate was prepared by punching in a zigzag pattern so that each pitch was 2 mm. Further, a lower perforated plate in which lower water-permeable holes were formed in a staggered manner was produced in the same manner as the upper perforated plate except that the diameter and pitch were as shown in Table 1. Next, the upper perforated plate and the lower perforated plate are parallel to the bottom of the frame body having a height of 80 mm, a length of 1025 mm, and a width of 202 mm. The two water-dispersing parts were formed by arranging two sheets spaced apart by 0.5 mm and fixing them so that no gaps were formed between the upper and lower perforated plates and the frame. The water distribution section includes an upper perforated hole 31e drilled in a corner of the upper perforated plate and a lower perforated hole drilled in a corresponding corner of the lower perforated plate. The center of the hole coincides when viewed from above the plate, and the wall portion of the frame is arranged so as to extend to above the upper hole plate and below the lower hole plate. Further, above the upper perforated plate, a sprinkling tube having a diameter of 2 mm and a pitch of 40 mm and having a sprinkling hole drilled in a row and having a diameter of 25 mm and a length of 1050 mm, the sprinkling tube is parallel to the longitudinal direction of the upper perforated plate. A watering means having a height of 80 mm, a length of 1025 mm, and a width of 202 mm was prepared by being positioned so that the distance between the watering hole and the upper hole plate was 30 mm.
[0056]
On the other hand, a glass nonwoven fabric formed of E glass fibers and an organic binder is dipped in a slurry containing alumina hydrate as a filler and alumina sol as a binder, then dried and corrugated to obtain a corrugated product. It was. The corrugated product is alternately superposed so that the wave propagation directions intersect, and then heat treated at 500 ° C., and consists of a total amount of alumina and alumina sol cured product of 80% by weight and E glass fiber of 20% by weight, A skewed honeycomb having a porosity of 65%, a peak height of 4.8 mm, and a pitch of 10 mm was produced. This slanted honeycomb has a width of 500 mm, a height of 500 mm, and a depth of 200 mm with respect to the direction of air flow, and the angle at which the wave propagation directions of the corrugated sheet intersect each other (in FIG. ) Is 60 degrees, and the oblique angle (symbol X in FIG. 1) with respect to the inflow and outflow direction (horizontal direction) of air when viewed from both the front and rear sides of the cell extending in the oblique direction is 30 degrees. Next, the sprinkling means that has a size that can hold two skew honeycombs arranged in the width direction and that has a front surface, a rear surface, an upper surface, and a lower surface that can be vented, and supplies contact water to the honeycomb on the upper portion. In addition, a drain pan for receiving contact water that has passed through the honeycomb is attached to the lower portion to form one gas-liquid contact unit. This gas-liquid contact unit has a height of 660 mm including the watering means and the drain pan, a width of 1050 mm, and a depth of 200 mm. Next, this gas-liquid contact unit was assembled in a casing having a width of 1050 mm, a height of 660 mm, and a depth of 200 mm, with the front and rear surfaces opened (one-stage arrangement of gas-liquid contact units, one unit in total). Further, the contact water having an increased temperature received by the drain pan is sent to a water cooling heat exchanger through a water feed pump, cooled, and circulated and supplied to the watering means above the honeycomb. It shows in Table 3 about conditions, such as a gas-liquid contact unit.
[0057]
The above gas-liquid contact device was supplied with air at 25 ° C. and 70 rh% at a flow rate of 4500 m^ThreeVentilation at a time / hour, and cold water of 7 ° C. in the watering pipe 23.5L / min (liquid / gas ratio L / G = 0.27kg / kg, L / G_400-200= 0.33 kg / kg), and the state of dispersion of water flowing down from the lower water transmission holes of the watering means was visually evaluated. The results are shown in Table 1. Further, the temperature of the outlet air at this time was measured. The results are shown in Table 2.
[0058]
Examples 2-25
A gas-liquid contact device was prepared in the same manner as in Example 1 except that the upper water-permeable hole or the lower water-permeable hole was formed as shown in Table 1, and the dispersion state of the flowing water was visually evaluated to determine the temperature of the outlet air. It was measured. The results are shown in Tables 1 and 2.
[0059]
Comparative Example 1
A gas-liquid contact device was produced in the same manner as in Example 1 except that the lower perforated plate was not attached, the dispersion state of the flowing water was visually evaluated, and the temperature of the outlet air was measured. The results are shown in Tables 1 and 2.
[0060]
Comparative Examples 2-5
A gas-liquid contact device was produced in the same manner as in Comparative Example 1 except that the upper perforated plate shown in Table 1 was used, and the state of dispersion of the flowing water was visually evaluated, and the temperature of the outlet air was measured. The results are shown in Tables 1 and 2.
[0061]
[Table 1]

[0062]
[Table 2]

[0063]
[Table 3]

[0064]
【The invention's effect】
When the gas-liquid contact device according to the present invention is used, water is dispersed in a wide range from the lower surface of the sprinkling means at a substantially uniform flow rate and flows down to the upper surface of the skewed honeycomb, so that gas-liquid contact can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a first embodiment of a gas-liquid contact device according to the present invention.
FIG. 2 is a cross-sectional view schematically showing a cross section taken along line AA in FIG.
FIG. 3 is a perspective view schematically showing an embodiment of watering means used in the present invention.
FIG. 4 is a perspective view schematically showing a part of the water distributor cut out.
FIG. 5 is a perspective view schematically showing an enlarged part of a water distributor.
FIG. 6 is a schematic plan view of a part of the water distributor as viewed from the upper hole plate side.
FIG. 7 is a diagram illustrating an arrangement mode of upper water-permeable holes.
FIG. 8 is a perspective view showing an example of a watering pipe used in the present invention.
FIG. 9 is a schematic view of a second embodiment of the gas-liquid contact device according to the present invention.
FIG. 10 is a schematic view of a second embodiment of the gas-liquid contact device according to the present invention as viewed from the side orthogonal to the flow direction of the air to be treated.
[Explanation of symbols]
1, 1A Gas-liquid contact device
2 watering means
3 Oblique honeycomb
4 Receiving pan (receiving section)
5, 5a₁5a₂5a_Three5b₁5b₂5b_Three5c₁5c₂5c_Three5d₁5d₂5d_Three5 Gas-liquid contact unit
6 Circulation pump (water circulation means)
7 Heat exchanger
8 Cooling water for water cooling after contact
9 Arrows indicating the direction of air flow
10 Water pipe
11 Arrow indicating makeup water
12 Water for contact
13 Water after contact
14 Case
15 Drain pipe
16 water
17 Supply water
21, 22 Corrugated sheets adjacent to each other
23 Water supply duct
30 Water distribution section
31 Upper permeability hole
32 Upper perforated plate
33 Lower permeability hole
34 Lower hole plate
35 Retention part
36, 36a, 36b, 36c Hole overlap
40 Watering pipe
41 Tubular body
42a, 42b, 42c Watering hole
50 frame
51 wall surface
101 Opening on top of skewed honeycomb
102 Opening portion on the rear surface of the skew honeycomb
103 Skewed honeycomb front opening
104 Skew honeycomb bottom surface opening
111, 112, 113 Branch water pipe
151, 152, 153 Branch drainage pipe

Claims (4)

A skewed honeycomb disposed such that both front and rear surfaces and upper and lower surfaces are opened, contact air is introduced from the front surface opening, and after contact air is discharged from the rear surface opening, an upper surface opening of the skewed honeycomb Water spray means for supplying contact water to the gas, a gas-liquid contact unit that receives water after contact discharged from the lower surface opening of the skewed honeycomb, and contact air to the front opening of the skewed honeycomb A gas-liquid contact device comprising a blowing means for introducing air and discharging air after contact from the rear opening of the skewed honeycomb,
The water sprinkling means includes a frame body that is surrounded by a wall surface in the horizontal direction, a plurality of upper water-permeable holes, an upper hole plate that is disposed above the frame body without any gaps, and a plurality of lower water-permeability holes. A water distribution part comprising a lower hole plate which is provided with a hole in the lower part of the frame body and spaced apart from the wall surface and substantially parallel to the upper hole plate; and the upper hole plate A watering pipe for supplying water to
The area per one upper water-permeable hole is 10 to 95% of the area per one lower water-permeable hole,
A gas-liquid contact device characterized by. The sheet-like member constituting the skewed honeycomb is composed of one or more fillers or binders selected from the group consisting of alumina, silica and titania, and glass fibers, ceramic fibers or alumina fibers. The gas-liquid contact apparatus according to claim 1 . The gas-liquid contact device according to any one of claims 1 and 2 , wherein the skew honeycomb has a porosity of 50 to 80%. Together comprising at least one said gas-liquid contact unit, any one of claims 1 to 3, wherein the oblique honeycomb per height in the gas-liquid contact unit is characterized by a 200~800mm The gas-liquid contact device described.

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