JPH08218571A - Method for forming liquid passage of plane - Google Patents

Abstract

PURPOSE: To guide a liquid by forming a liquid passage of a first surface consisting of a hydrophilic material and a second surface composed of a water repellent material formed while being adjoined to the first surface and forming the first surface as the liquid passage. CONSTITUTION: The narrow-width beltlike first surface 2 of concrete and asphalt or a hydrophilic material consisting of a waterproof sheet, etc., is formed on the surface of a plane 1 such as a road or the roof of a building. Second surfaces 3a, 3b composed of a water repellent material such as polyethylene, polystyrene, etc., are formed on both sides of the first surface 2. An extremely slight inclined plane or curved surface is shaped for introducing a liquid towards the first surface 2 from the second surfaces 3a, 3b. Accordingly, the liquid can be guided without forming a groove, etc., on the plane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a liquid flow path on a flat surface, and more specifically to a liquid flow path for rainwater or the like on an area forming a flat surface such as a rooftop of a building, a road or passage, or a transportation passage for objects. The present invention relates to a method for forming a liquid flow path on a plane that is suitable for forming the liquid flow path.

[0002]

2. Description of the Related Art Generally, in a building or the like having a flat road or roof, a groove is provided as a liquid flow path for discharging rainwater and the like.

[0003]

By the way, when the groove is provided as the liquid flow path as described above, a step is generated and special processing is required. Further, it is usually necessary to cover the groove with a lid, so that not only is it troublesome to construct the groove, but there is also a problem that the appearance is impaired. Further, when a groove is formed in the passage, there is a problem that the passage cannot be made smooth due to the existence of the groove, which causes troubles in transportation and traffic.

[0004]

The present invention has been made in order to solve the above-mentioned problems, and includes a first surface made of a hydrophilic material formed in the direction of liquid flow, and A second surface made of a water repellent material formed adjacent to the first surface, and allowing the liquid to flow down so that the first surface serves as a liquid flow path. A method for forming a channel is provided.

Preferably, the second surface has fine irregularities on its surface, and at least part of the irregularities is covered with a film made of a water-repellent material. Further, it is possible to form an efficient water channel by giving the second surface a slight inclination or a curved surface toward the first surface so that the first surface is the bottom.

[0006]

[Operation] In the liquid flow path configured by the liquid flow path forming method on the plane, the second surface is made of a water-repellent material, so that the liquid on the upper surface is repelled and the liquid can be easily inclined with a slight inclination. Flow into the first surface to form a flow path.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for forming a liquid channel on a plane according to the present invention will be described below with reference to FIGS. FIG. 1 is a plan view for explaining a fluid flow path, and FIG. 2 is a cross-sectional view of the liquid flow path. A narrow width made of a hydrophilic material is formed on a surface of a flat surface 1 such as a road or a roof of a building. The band-shaped first surface 2 is formed on the both sides, and the second surfaces 3a and 3b made of a water-repellent material are formed on both sides of the first surface 2.

First surface 2 formed of the hydrophilic material
May be formed on the surface of a road or a roof or on the surface thereof with a hydrophilic material. Also, the second surface 3
a and 3b are far more water-repellent than the first surface 2, and the liquid flowing on the surfaces 3a and 3b does not substantially adhere to the surface 3a or 3b, or the degree of the adhesion is small. The liquid has the property of easily flowing down the second surface and flowing into the first surface 2 side. In terms of the model, the first surface has the property of guiding the liquid like a groove or a river. The second surface has the property of supplying liquid to this groove or river. Therefore, in the present invention, the liquid can be guided by utilizing the difference between hydrophilicity and water repellency.

The first surface 2 is, for example, a waterproof sheet for a roof in the case of a roof, and a waterproof sheet for a construction site or a waste disposal site. In the case of roads, it means concrete or asphalt. Further, in the case of a plant, it means an outer wall of the equipment, a flat surface or a floor through which a liquid or sewage as an object to be treated flows.

The water-repellent material forming the second surfaces 3a, 3b is a material having a contact angle with water of 90 ° or more, such as polytetrafluoroethylene, polyethylene,
A hydrophilic resin such as polystyrene or polypropylene, a water-repellent coating agent, or polyvinyl chloride may be used, which has been made water-repellent by plasma treatment using CF ₄ gas.

And, preferably, the second surface 3a,
A very slight slope or curved surface is formed to guide the liquid from 3b towards the first surface 2. Further, fine irregularities are provided on the surfaces of the first surfaces 3a and 3b. That is, as shown in FIG. 3, the surface 4 of the structure is covered with the film 5, and the surface of the film 5 is provided with the fine concave portions 6 and the convex portions 7, at least a part of which is as described above. Water repellent In addition, as a specific method for forming the second surfaces 3a and 3b, Japanese Patent Application Nos. 4-259896 and 5-10695 are applicable.
Since details are described in the specification of No. 3, it is preferable to refer to this.

According to such a surface shape of the film body 5, the water repellency is extremely good, so that the liquid on the second surfaces 3a and 3b can be easily guided to the first surface 2. As described above, the liquid can be supplied from the surface having water repellency to the surface having hydrophilicity by arranging the surface having hydrophilicity and the surface having water repellency as the surface where the liquid is wet or flowing. is there. Therefore, by forming a hydrophilic surface in an arbitrary shape and forming a water-repellent surface adjacent to this surface, the liquid can be guided as if grooves were formed. Of.

As an application of the present invention, a slightly inclined surface is formed so as to draw a picture or a drawing with a hydrophilic surface, and a water-repellent surface is arranged around this surface, and if necessary, both surfaces are formed. Different colors are applied to the surface, and the surface that forms a water layer with hydrophilicity by illuminating it as necessary while flowing a liquid, such as water, from above, and the reflection and gloss between the other surface It is possible to draw pictures, characters and figures by utilizing the difference between.

Further, in a device that generates heat, by utilizing the aspect of the present invention, it is possible to positively guide the cooling liquid to a place where heat is generated and effectively cool it. Furthermore,
When mixing a plurality of liquids, the first surface and the second surface are arranged in advance, and by supplying the liquids to be mixed to these surfaces, a predetermined mixing can be performed at a predetermined place. . Contrary to the above method, by arranging the first surface and the second surface appropriately and allowing the mixed liquid to flow into the entire surface, one liquid is adsorbed from the mixed liquid at any of the surface portions. , Can be separated.

As still another application, the first surface and the second surface are formed in a stripe shape on the inner surface of a transparent cylindrical body, the cylindrical body is supported at an inclination, and air or air bubbles are supplied from the lower side. By forming a part where air adheres to generate large bubbles, a part where bubbles do not occur, and a part where bubbles flow at different speeds are formed, an aquarium tank having an excellent decoration function or A passage or the like in the water tank can be configured.

It should be noted that, for example, water or a mixture of water and oil can be treated as the liquid, but particularly in the case of the mixture of water and oil, depending on the design of the flow path, the mixture of water and oil on a flat surface can be used. Can be separated while flowing down.

[0017]

According to the method of forming a flow path for a liquid on a flat surface according to the present invention, a first surface made of a hydrophilic material formed in the direction of fluid flow and formed adjacent to the first surface. A second surface made of a water-repellent material,
The fluid is configured to flow down so that the surface of the fluid is used as a liquid flow path.

Therefore, it is not necessary to provide a special groove or the like on the flat surface, the liquid can be guided as if the groove was provided, the structure is simple, and the appearance is not spoiled. is there.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a method for forming a fluid channel on a plane according to the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of a method for forming a fluid channel on a plane according to the present invention.

FIG. 3 is a cross-sectional view of a film body.

[Explanation of symbols]

1 plane 2 1st surface 3a, 3b 2nd surface 4 structure surface 5 film body 6 concave part 7 convex part

Claims (2)

[Claims] 1. A first surface made of a hydrophilic material formed in a liquid flow direction, and a second surface made of a water-repellent material formed adjacent to the first surface. 1. A method for forming a liquid flow path on a plane, characterized in that the liquid is made to flow down so that the surface of No. 1 becomes a liquid flow path. 2. The second surface according to claim 1, wherein the surface has fine irregularities, and at least part of the irregularities is covered with a film body formed of a water-repellent material.