JPH1157357A - Liquid drop separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve liquid drop separation performance and to enhance the capability in dealing with a high-velocity gaseous stream. SOLUTION: This liquid drop separator is juxtaposed with plate materials 2 of a vertical posture having a V-shape in the cross sectional shape in a plane view apart a spacing disposed in a thickness direction in the posture of the V-shape heading the same direction and allows the passage of the horizontal facing gaseous stream A accompanied by the liquid drops in the spacings between the plate materials 2. The surfaces from the beginning end of the projecting side windward slopes (a) at the V-shape of the plate materials 2 to the beginning end of the projecting side leeward slopes (c) are continuously provided with multilayered structures S for liquid capturing and dropping guiding in which many grooves 4 extending in a vertical direction line up in a gas flow passage direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a droplet separating apparatus for separating accompanying liquid droplets from a passing airflow by using a slush provided on an outer wall or an outer door of a building or an eliminator of an air conditioner. , Plate members in a vertical position having a cross-sectional shape of “H” in plan view, and juxtaposed at intervals in the thickness direction with the “H” shape facing the same side, and these plate materials are connected to each other. The present invention relates to a droplet separation device for passing a horizontal droplet-associated airflow through a gap between the droplet separation devices.

[0002]

2. Description of the Related Art In this type of droplet separating apparatus, plate members extending in a lateral direction in a forward and backward inclined posture are vertically arranged at predetermined intervals.
Compared to a liquid drop separator of the type in which a weir-shaped liquid return (water return) is provided on each of the plate materials, the air flow passage resistance is small because weir-shaped liquid return is unnecessary, while obtaining a high droplet separation effect. Since the air permeability is high and the plate material is in the vertical position, it has the advantage that the trapped liquid can be smoothly discharged and discharged along the plate material in the vertical position. However, conventionally, this type has the following (a). ) Or (b).

(A) As shown in FIG. 8 (plan view), a hollow separation chamber n1 is provided at a central bent portion 2Y of the plate material 2 in the shape of the "H", and this separation chamber n1 is located on the convex windward side. Slope a
At the end of the. In addition, the midway portion of the windward inclined portion 2X in the shape of “H” is locally bent, and a single trapping groove n2 (concave windward inclined surface on the back surface) is provided in the middle of the convex windward inclined surface a. d, a convex ridge) is formed, and an intermediate portion of the leeward inclined portion 2Z is locally bent, so that a collection groove n3 (a convex leeward inclined surface on the back surface) is formed in the concave leeward inclined surface f. c, a convex ridge) is formed, and further, the concave-side leeward inclined surface f
A groove-shaped shut-off chamber n4 having a large opening width is provided at the end of.
The openings of these separation chambers n1, the collection grooves n2, n3,
Except for the opening of the shut-off chamber n4, the convex side plate surface and the concave side plate surface are made smooth, and the radius of curvature of the concave arc surface e of the central bent portion 2Y is larger than the radius of curvature of the convex arc surface b. (See Japanese Utility Model Publication No. 46-18532).

(B) As shown in FIG. 9 (plan view), a multi-groove structure S for liquid capture and flow-down guide, in which a number of vertically extending grooves 4 are arranged in the airflow passage direction, is formed by “heavy” , The surface from the beginning to the end of the convex leeward inclined surface a, the surface from the starting end to the terminal end of the convex leeward inclined surface c, and the starting end of the concave leeward inclined surface f (or It is provided continuously on each of the surfaces from the end of the concave leeward slope d) to the end of the concave leeward slope f. And the central bend 2
Each of the surfaces from the starting end of the convex-side arc surface b of Y and the concave-side leeward inclined surface f to the starting end of the concave-side leeward inclined surface f (or the terminal end of the concave-side leeward inclined surface d) is described above. Of the multi-groove structure S is a series of smooth surfaces that do not exist.
Reference).

[0005]

However, in the structure (a), when the airflow A passes between the plate materials, the accompanying liquid droplets collides with the convex windward inclined surface a for a time. Therefore, it is carried on the plate surface without being reliably captured by the collecting groove n2 of the convex windward inclined surface a and the opening of the separation chamber n1, and climbs over the convex arc surface b of the central bent portion 2Y, and ,
The liquid that re-spatters into the airflow at the time of this overcoming, and is carried to the leeward side on the surface of the convex-side leeward inclined surface c following this overcoming, and flows from the terminal edge of the convex-side leeward inclined surface c into the airflow. Many liquids are re-scattered to the liquid, and there is a problem that the droplet separation performance is low in this regard.

[0006] Further, as the passing air velocity is higher, the transport of the liquid on the surface is promoted, and the amount of the liquid re-scattered increases as described above. It is necessary to increase the cross-sectional area of the road to reduce the passing wind speed, which causes a problem that the apparatus becomes large.

On the other hand, in the structure (b), a multi-groove structure S provided on the surface from the start end to the end of the convex windward inclined surface a is provided.
In the above, the collision liquid that could not be reliably captured by one groove 4 can be captured by the following groove 4 (in short, there are many opportunities to capture the collision liquid). ,
High liquid separation performance can be obtained by more reliably collecting liquid on the convex windward inclined surface a. However, even in the structure of (b), in consideration of the correspondence to a higher passing wind speed, it is possible to more effectively prevent the liquid from climbing over and re-scattering on the convex side arc surface b of the central bent portion 2Y, There has been a demand for a higher droplet separation performance, and there is still room for improvement in this respect.

[0008] In view of the above situation, a main object of the present invention is to improve the droplet separation performance more effectively by improving the structure (b).

[0009]

[Means for Solving the Problems]

[1] In the invention of claim 1, (see FIG. 1 or FIG. 6)
A multi-groove structure S in which a large number of grooves 4 extending in the vertical direction are arranged in the airflow passage direction is formed from the starting end of the convex windward inclined surface a in the shape of “H” in plan view of the vertical posture plate member 2 to the convex windward inclined surface c. Is provided continuously on the surface up to the start end of the slab, the multi-groove structure S on the convex windward inclined surface a allows the impinging liquid to be effectively trapped in a state where there is a lot of trapping liquid as described above. The liquid which is carried on the plate surface and tends to cross the convex side arc surface b of the central bent portion 2Y can be similarly effectively captured by the multi-groove structure S in the convex side arc surface b, whereby the center It is possible to effectively prevent the collision liquid from getting over the convex arc surface b of the bent portion 2Y.

Also, the convex side arc surface b at the central bent portion 2Y
In the vicinity of the top part, a turbulent peeling of the air flow occurs, which is the main cause of liquid re-scattering. However, the air flow is guided by the air flow guide by the concave leeward inclined surface f of the adjacent plate member 2 facing the convex arc surface b. In combination with the original function of the "H" shape for suppressing the turbulence, the liquid retaining action of the multi-groove structure S on the convex side arc surface b of the central bent portion 2Y causes the convex side arc surface b due to the airflow turbulence described above. Liquid re-splashing can be effectively prevented, and from these facts, the droplet separation performance can be effectively improved as compared with the above-described structure (a) or (b). In addition, since the responsiveness to a high wind speed is greatly increased, it is possible to effectively achieve downsizing of the apparatus by increasing the passing wind speed by reducing the cross-sectional area of the air passage in the case of forced ventilation.

[2] According to the second aspect of the present invention (see FIG. 1 or FIG. 6), the multi-groove structure S is formed at the beginning of the convex side windward inclined surface a of the plate material 2 in the shape of "H". Is continuously provided on the surface from the to the end of the convex leeward inclined surface c. Therefore, although the amount is reduced due to the improvement of the above-described overcoming prevention function, the convex leeward slope c of the central bent portion 2Y is overcome. The liquid reaching the inclined surface c can also be effectively captured by the multi-groove structure S on the leeward inclined surface c on the convex side, so that the droplet separation performance can be further improved.

[3] According to the third aspect of the present invention (see FIG. 1 or FIG. 6), the radius of curvature of the concave side arc surface e of the central bent portion 2Y in the "H" shape of the plate member 2 is determined by calculating Bending part 2
Since the radius of curvature of the convex-side arc surface b of Y is made larger than that of the convex-side arc surface b, the protrusion of the convex-side arc surface b with respect to the airflow path between the plates is increased. On the other hand, the concave arc surface e facing the air flow path between the plates is formed to be a gentle arc surface, and the eddy current due to air flow stagnation in the concave space formed by the concave arc surface e can be effectively suppressed. The suppression can reduce the airflow resistance.

In addition, the eddy current in the concave space portion disturbs the air flow near the convex side arc surface b of the adjacent plate member 2 facing the concave space portion, but this eddy current is effectively reduced as described above. By suppressing and stabilizing the airflow near the convex side arc surface b,
As described above, liquid re-scattering on the convex side arc surface b can be more effectively prevented in combination with preventing liquid re-scattering by the liquid retaining action of the multi-groove structure S on the convex side arc surface b.

[4] According to the fourth aspect of the present invention (see FIG. 1 or FIG. 6), a vertical hole-shaped cavity 5 extending in the up-down direction is provided in the central bent portion 2Y of the plate member 2 in the shape of the "H". Provided,
By opening the cavity 5 in a slit shape extending in the vertical direction on the concave arc surface e of the central bent portion 2Y, an extremely small vortex is generated inside the cavity 5 with the passage of the airflow between the plate members, and the inside of the cavity is formed. The micro-vibration caused by the eddy current can promote the discharge of trapped liquid in the multi-groove structure S of the plate surface (particularly, the multi-groove structure of the convex arc surface b close to the cavity 5) to the lower side of the plate material,
By promoting the liquid discharge, the retention time of the trapped liquid on the plate can be shortened to further enhance the droplet separation performance.

Further, since the cavity 5 is opened in a slit shape on the concave arc surface e where there is little liquid, it is possible to prevent the above-mentioned micro-vibration effect from being reduced due to the intrusion of the liquid into the cavity. Since a vortex is generated in the cavity, the airflow near the convex arc surface b of the adjacent plate member 2 facing the opening of the cavity 5 is disturbed by the influence of the vortex in the cavity, and the air flow at the convex arc surface b Liquid re-dispersion is not promoted.

If the diameter of the cavity 5 and the width of the slit-like opening are appropriately selected, it is easy to limit the micro-vibration caused by the eddy current in the cavity to one that does not cause a noise problem.

[5] In the fifth aspect of the present invention (see FIG. 1 or FIG. 6 and FIG. 5), the hollow 5 is connected to the vertical end of the plate 2 and the holding frame 1 of the plate group. Since it is also used as the stop hole of the connecting member 6, the device structure can be simplified and the device structure can be simplified as compared with forming a dedicated stopping hole for the connecting member separately from the cavity 5 or providing another dedicated connecting structure. Can be facilitated.

[6] According to the sixth aspect of the present invention (see FIG. 1 or FIG. 6), the concave leeward inclined surface f from the start end of the concave leeward inclined surface d in the "H" shape of the plate member 2 is formed. Is formed as a series of smooth concave curved surfaces in which the multi-groove structure S is absent, or a series of smooth concave curved surfaces excluding the slit-shaped opening of the cavity 5.

That is, in the passage of the airflow between the plate members, the surface from the starting end of the concave-side leeward inclined surface d to the starting end of the concave-side leeward inclined surface f has almost no collision of the airflow-related droplets. With respect to the portion, the multi-groove structure S is formed into a series of smooth concave curved surfaces in the absence of, or a series of smooth concave curved surfaces excluding the slit-shaped openings of the cavities 5, thereby improving the droplet separation performance. The air flow along the concave surface can be made smooth without any influence, and the air flow resistance as a whole can be reduced.

[7] According to the seventh aspect of the present invention (see FIG. 1 or FIG. 6), the multi-groove structure S is formed by forming the concave-side leeward inclined surface f of the plate material 2 in the shape of an "H". Since it is continuously provided on the surface from the end to the end portion, it can be said that the amount of droplets colliding with the concave leeward inclined surface f while riding on the airflow and the above-mentioned re-scattering prevention function is improved, Droplets that re-scatter on the convex side arc surface b of 2Y and collide with the concave leeward inclined surface f can be effectively captured by the multi-groove structure S on the concave leeward inclined surface f. The performance can be further enhanced.

[8] In the invention according to the eighth aspect (see FIG. 1 or FIG. 6), the leeward side groove wall surface 4a of each groove 4 in the multi-groove structure S is formed by a plate material at the position where the groove 4 is formed. Since the vertical wall surface or the inclined wall surface located closer to the windward side toward the groove opening side, the trapped liquid inside the groove is taken out from the inside of the groove to the leeward side by the wind pressure. This can be effectively prevented by the wall surface or the inclined groove wall surface, whereby the liquid collecting performance of the multi-groove structure S can be enhanced, and the droplet separation performance of the entire apparatus can be more effectively enhanced.

[0022]

[9] According to the ninth aspect of the present invention (see FIG. 1 or FIG. 6), the leeward inclined portion 2Z in the “H” shape of the plate member 2 is set to be a gentler inclined posture than the leeward inclined portion 2X. In addition, the inclination of the windward inclined portion 2X is increased to secure a high droplet catching property on the convex windward inclined surface a, which is a main portion of liquid capture, and the airflow is guided by the concave leeward inclined surface f. The wind regulating action of the leeward slope portion 2Z, which has a gentler slope than the windward slope portion 2X, while maintaining the above-mentioned function of suppressing the peeling turbulence of the airflow near the top of the convex side arc surface of the opposing adjacent plate member 2. Thus, the airflow as a whole can be made smooth, and thereby the airflow resistance can be reduced.

[0023]

3 to 5 show a gallery G installed in a ventilation opening in a building outer wall W, and a duct D for guiding air is connected to the gallery G from the inside of the building.

This gull G is formed by placing a plate member 2 having a vertical shape with a cross-sectional shape of "H" in a plan view inside a rectangular holding frame 1 and facing the same side with the "H" shape. It has a structure in which the air flow A from the outside of the building passes sideways in the gap between the plate materials 2 in the horizontal direction at a predetermined pitch P in the plate thickness direction. The entrained water droplets are captured and separated from the airflow A by the plate 2, and the captured water is caused to flow down along the plate 2 in the vertical position,
The drainage water reaching the lower side 1a of the holding frame 1 is discharged to the outside of the building.

The upper surface of the lower side 1a of the holding frame has a double-plate structure, and the lower side upper plate 3 which functions as a receiving plate for flowing water prevents the entrance of the receiving water into the inside of the building. A weir-shaped bent portion 3a is formed.

As shown in FIG. 1, the specific structure of each of the plate members 2 is a leeward inclined portion 2 in a U-shape in plan view.
Z is set to a tilt position that is gentler than the windward tilt portion 2X, and
The radius of curvature of the concave-side arc surface e of the central bent portion 2Y in the shape of “H” is made larger than the radius of curvature of the convex-side arc surface b of the central bent portion 2Y.

A multi-groove structure S for liquid capture and flow-down guide in which a large number of vertically extending grooves 4 are arranged in the airflow passage direction,
Each of a surface from the starting end of the convex leeward inclined surface a to the terminal end of the convex leeward inclined surface c and a surface from the starting end to the terminal end of the concave leeward inclined surface f in the shape of “H”. In the meantime, the surface from the starting end of the concave-side leeward inclined surface d to the starting end of the concave-side leeward inclined surface f in the shape of the letter “H” is formed without the multi-groove structure S. It has a series of smooth concave curved surfaces (a series excluding a slit-shaped opening of the cavity 5 described later).

That is, the leeward inclined portion 2Z is gently inclined, the concave arc surface e is increased in diameter, and the smoothness from the beginning of the concave leeward inclined surface d to the beginning of the concave leeward inclined surface f is obtained. While the air flow between the plate materials is smoothed by the concave surface and the air flow resistance is reduced, the accompanying water droplets of the passing air flow A mainly collide with the convex windward inclined surface a, and the impinging water is convex. The multi-groove structure S from the side windward inclined surface a to the convex side arc surface b of the central bent portion 2Y effectively captures, and although it is a small amount, it climbs over the convex side arc surface b and projects on the convex side leeward slope. The water reaching the surface c and the water droplets that ride on the airflow A (or re-scatter on the convex side arc surface b) and collide with the concave leeward inclined surface f are also affected by the convex leeward inclined surface c and the concave side. The water is captured by the multi-groove structure S on the leeward inclined surface f, thereby obtaining high water droplet separation performance.

The groove wall surface 4a on the leeward side of each groove 4 in the multi-groove structure S is a wall surface perpendicular to the plate material attitude at the position where the groove 4 is formed. The vertical groove wall surface 4a effectively prevents the water from being taken out to the leeward side, thereby ensuring high water capturing performance of the multi-groove structure S.

A vertical hole-like cavity 5 extending in the vertical direction is provided in the central bent portion 2Y of the plate
The cavity 5 is opened in a slit shape extending in the vertical direction on the concave arc surface e of the central bent portion 2Y, whereby an extremely small vortex is generated inside the cavity 5 with the passage of the airflow between the plate members. Then, the small vibration caused by the eddy current in the cavity promotes the discharge of the trapped water in the multi-groove structure S on the plate surface to flow down the plate material.

The lower end and the upper end of the cavity 5 are provided with screws 6 for connecting the lower end of each plate member 2 and the lower side 1a of the holding frame.
Further, it is also used as a stopper hole for a connector for screwing a screw 6 for connecting the upper end portion of each plate member 2 and the holding frame upper side portion 1b.

As a preferred example of the dimensional relationship of each part of the plate member 2 shown in FIG. 1 (see FIG. 2), the following example can be cited. If the sheet material side-to-side pitch P is used as a sheet material and the similar ratio is doubled,
Almost the same high water droplet (droplet) separation effect can be obtained.

L1 = 80.0 mm L2 = 24.6 mm L3 = 4.25 mm L4 = 5.25 mm L5 = 1.7 mm L6 = 1.5 mm L7 = 3.0 mm L8 = 1.0 mm L9 = 1.7 mm L10 = 0.5 mm L11 = 0.5 mm L12 = 1.0 mm L13 = 1.0 mm L14 = 4.8 mm L15 = 5.3 mm R1 = 16.4 mm R2 = 32.8 mm R3 = 6.5 mm R4 = 5.65 mm R5 = 12.0mm R6 = 8.0mm θ1 = 52 ° θ2 = 45 ° θ3 = 93 ° θ4 = 31 ° Pitch P = 25.0mm

[Another Embodiment] Next, another embodiment will be described. (1) FIG. 6 shows an example in which a plate material 2 having a slightly different shape from the above-described embodiment is used for the side-by-side plate material, and in this case also, a high water droplet (droplet) separation effect equivalent to that of the above-described embodiment is shown. Can be obtained.

As a preferred example of the dimensional relationship of each part of the plate 2 shown in FIG. 6 (see FIG. 7), the following example can be given. If the plate material side-by-side pitch P is used for the side-by-side plate material and the similar ratio is multiplied by the similar ratio, it is possible to obtain a substantially same high water droplet (droplet) separation effect.

L1 ′ = 50.0 mm L2 ′ = 15.4 mm L3 ′ = 2.98 mm L4 ′ = 2.6 mm L5 ′ = 1.4 mm L6 ′ = 0.75 mm L7 ′ = 1.5 mm L8 ′ = 1. 0 mm L9 ′ = 1.4 mm L10 ′ = 0.5 mm L11 ′ = 0.5 mm L12 ′ = 1.0 mm L13 ′ = 1.0 mm L14 ′ = 2.8 mm L15 ′ = 2.55 mm R1 ′ = 10.2 mm R2 '= 20.5mm R3' = 4.6mm R4 '= 3.9mm R5' = 10.0mm R6 '= 4.95mm θ1' = 52 ° θ2 '= 45 ° θ3' = 93 ° θ4 '= 31 ° Parallel pitch P = 15.0mm

(2) In the above-described embodiment, an example was described in which the accompanying water droplets of the air flow were targeted for capture. However, the captured targets are not limited to water droplets, and may be droplets other than water. The airflow is not limited to the airflow, and may be an airflow other than air.

(3) The droplet separation apparatus of the present invention is provided for the purpose of air intake provided on an outer wall or an outer door of a building for the purpose of capturing and separating forced air flow from the outside of the building or accompanying water droplets of blowing wind from the outside of the building. It can be used for various applications that require separation of droplets from an airflow, such as an exhaust gutter or an eliminator provided in an air conditioner.

(4) In the above-described embodiment, the leeward side groove wall surface of each groove in the multi-groove structure is a wall surface perpendicular to the plate material attitude at the position where the groove is formed. May be an inclined wall surface located closer to the windward side toward the groove opening side.

(5) In practicing the invention described in each claim, the detailed structure of the plate material can be variously changed within the scope described in each claim.

Incidentally, in the section of [Means for Solving the Problems], reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view in plan view.

FIG. 2 is an enlarged plan view for explaining plate material dimensions.

FIG. 3 is a cross-sectional plan view showing the entire structure of the device.

FIG. 4 is a front view showing the entire structure of the apparatus.

FIG. 5 is a sectional side view showing the entire structure of the apparatus.

FIG. 6 is an enlarged cross-sectional plan view showing another embodiment.

FIG. 7 is an enlarged plan view for explaining plate dimensions in another embodiment.

FIG. 8 is a plan sectional view showing a conventional structure.

FIG. 9 is a plan sectional view showing another conventional structure.

[Explanation of symbols]

 2 Plate material A Air flow 4 Groove 4a Groove wall surface S Multi-groove structure 2X Windward inclined portion 2Y Center bent portion 2Z Downwind inclined portion a Convexed upwind inclined surface b Convexed arc surface c Convexed leeward inclined surface d Concave upwind Inclined surface e Concave arc surface f Concave leeward inclined surface 5 Cavity 1 Holding frame 6 Connecting tool

Claims (9)

[Claims] 1. A plate member having a vertical shape having a cross-sectional shape of “H” in a plan view is provided side by side with an interval in the thickness direction so that the “H” shape faces the same side. A droplet separation device for passing a horizontal droplet-associated gas flow through a gap between these plate materials, comprising a multi-groove structure for liquid capture and flow-down guide in which a large number of vertically extending grooves are arranged in the gas flow passage direction. A droplet separating device continuously provided on a surface from a start end of the convex upwind slope to a start end of the convex downwind slope in the shape of the plate member having the shape of "H". 2. The multi-groove structure is provided continuously on a surface from the start end of the convex upwind slope to the end of the convex downwind slope in the “H” shape of the plate material. Item 1
The droplet separation device according to the above. 3. The plate material according to claim 1, wherein the radius of curvature of the concave side arc surface of the central bent portion in the “H” shape is larger than the radius of curvature of the convex side arc surface of the central bent portion. 3. The droplet separation device according to 2. 4. A vertical hole-shaped cavity extending in the vertical direction is provided in a central bent portion of the plate material in the shape of the "H", and this cavity extends vertically in a concave arc surface of the central bent portion. The droplet separation device according to any one of claims 1 to 3, wherein the droplet separation device is opened in a slit shape. 5. The droplet separating apparatus according to claim 4, wherein the cavity is also used as a stop hole of a connector for connecting a vertical end portion of the plate member and a holding frame of the plate group. 6. A series of smooth surfaces in which the multi-groove structure is absent are formed on a surface from a start end of the concave upwind inclined surface to a start end of the concave leeward inclined surface in the “H” shape of the plate material. The droplet separation device according to any one of claims 1 to 5, wherein the device has a concave curved surface or a series of smooth concave curved surfaces excluding a slit-shaped opening of the cavity. 7. The multi-groove structure is provided continuously on the surface from the start end to the end of the concave leeward inclined surface of the plate material in the shape of the “H”. 1
Item 6. The droplet separation device according to Item 1. 8. The groove wall surface on the leeward side of each groove in the multi-groove structure may be a wall surface perpendicular to the plate material attitude at the position where the groove is formed, or an inclined wall surface located closer to the windward side as the groove opening side. The droplet separation device according to any one of claims 1 to 7. 9. The droplet separation device according to claim 1, wherein the leeward inclined portion of the plate member in the shape of the “H” has a gentler inclination than the leeward inclined portion. .