JP3765085B2 - Liquid flow regulation member - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is used for the purpose of snowmelt / cooling / heat collection / heat radiation, etc., a flow regulating member for regulating the flow of the heat medium in a controlled state, the diffusion of liquids such as seawater, etc. It relates to a flow-down regulating member for diffusion supply that appropriately distributes a flow-down regulating member that promotes and a hydroponics solution that also serves as a heat retaining liquid.
The present invention particularly relates to a liquid flow regulating member used by being attached to the surface of a roof or wall surface made of iron plate, a heat exchange metal board or a metal backup resin membrane structure. When this liquid flow regulation member is used on the iron plate roof, if the warm water is run along the liquid flow regulation member, the snow can be removed from the roof or melted in the winter, and solar heat can be collected in the summer. It is possible to cool the roof and walls by flowing cold water.
[0002]
[Prior art]
A flow regulating member having a flow path parallel integrated structure in which a liquid-phobic portion and a lyophilic portion are alternately provided on the surface of a member to regulate the flow of the liquid is well known. The applicant of the present application has subdivided the flow regulation member into a strip shape, studied a simple adhesive member that can be used by simply sticking to the required adherend surface, and has made various types of prototypes and evaluated them.
[0003]
The first problem with such adhesive members is how to manufacture reliable products with excellent durability, including use under severe conditions and when special use conditions are required. Second, the liquid restraining performance is greatly influenced by the inclination accuracy of the adherend surface and the posture of the member itself. Thirdly, when used outdoors, for example, in a case where it is used as a snow melting member, the liquid may deviate from the member due to the influence of wind. The object of the technical problem solution of the present invention is for the second and third problems described above.
[0004]
[Problems to be solved by the invention]
For example, when a member is attached to the roof of a steel bar iron plate, the roof surface of the iron plate itself is uneven, and if the base is provided with a heat insulation layer, the roof surface is uneven due to the walking of the worker accompanying the work. Remarkably recognized compared to those without. Therefore, when a member is attached to the roof having such poor planar accuracy, the restraining performance of the member on the liquid is lowered, and a local short circuit occurs due to the force of the flowing liquid, so that the regulation effect is lost. In the experimental stage, the flow regulation was good for uneven surfaces that are normally seen, but the actual painted surface of the existing roof is often seen to have deteriorated considerably, so there is no need to install parts on site. Strict quality control is required for construction. Further, the adhesive member to the roof is easily affected by wind, and when exposed to strong wind, the liquid tends to flow out of the flow path. When the outside air temperature is low, the liquid greatly deviating from the path freezes relatively easily.
It is an object of the present invention to provide a highly reliable liquid flow regulation that can always realize a stable restrained flow without significantly degrading performance or use due to the condition of the surface to be bonded and the influence of wind. It is to provide a member.
[0005]
[Means for Solving the Problems]
According to the present invention, it comprises a bottom base material that forms a waterproof layer and a liquid absorbent material installed on the bottom base, and the liquid absorbent material has a small liquid content and is one of the flowing liquid. A main flow path of any width that forms an exposed liquid flow that absorbs the rest and the rest slides on the surface, and is located on the side of the main flow path at the top of the bottom substrate, A sub-flow path having a large liquid impregnation holding amount compared with the flow-down path, the upper surface of the main flow path is set lower than the upper surface of the sub-flow path, and the liquid flow in which the main flow path is depressed A setting member is obtained.
[0006]
[Action]
The liquid-absorbing material forms a flow path with an arbitrary width. The liquid flows down along the flow path of this arbitrary width. The liquid-absorbing material is composed of a main flow path with a small amount of liquid impregnation and a sub-flow path with a large amount of liquid impregnation that is located on the side of the main flow path. The main flow path and the sub-flow path are stepped grooves. And is arranged in the form of a bank. Accordingly, the side flow is arranged on the side of the main flow of the heat medium flowing down the main flow path, and the liquid flows in a state where the liquid absorption material remains dense over the entire width.
[0007]
Since the main flow path has a small amount of liquid impregnation, it forms an exposed main flow that slides along the flow surface along the flow direction of the liquid-absorbing material, and also has a large liquid impregnation capacity (or high liquid absorption with high flow resistance). ) Due to the sub-flow downstream path, a slow flow sub-flow having a slower flow velocity than the main flow is formed on the side of the main flow. Therefore, even if the unevenness of the adherend surface is encountered, the mainstream flow that is offset can be absorbed and absorbed by the subflow path, and a large amount of the mainstream flow can be prevented from leaking from the member. Even when the main flow is pushed to the side by the force of the wind, the secondary flow path performs the same function.
[0008]
In addition, during normal times, the main flow path has a higher flow speed than the sub flow path, and therefore channeling to the outside of the liquid absorbent material hardly occurs. Therefore, freezing hardly occurs. When the liquid is a heat medium, the heat medium adhering to the liquid absorbing material spreads evenly in a plane, and a planar heat radiator having a desired amount of heat is formed in the boundary region of the liquid absorbing material.
[0009]
If the flow regulation member is used as a snow melting member, a large amount of heat medium can be caused to flow through the main flow path described above, and a sufficient amount of heat can be supplied to the entire roof surface even on a long roof. .
The liquid absorption material has a main flow and a side flow on the entire surface, so a relatively wide liquid absorption material can be used, and the effective snow melting surface is greatly expanded compared to a member having a hydrophobic boundary layer on the side. be able to.
[0010]
【Example】
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a flow regulating member according to the present invention will be described below in detail with reference to the accompanying drawings, assuming that this member is used as a snow melting member.
1 and 3 show a state in which this member is attached to the snow cover surface 1 of the roof tile roof.
The member is composed of a bottom substrate 2a and a liquid-absorbing material 2 installed on the bottom substrate. The bottom substrate 2a is composed of a pressure-sensitive adhesive layer, a synthetic resin member, a composite layer material of a synthetic resin film and a metal foil or a metal deposition layer, a plastic or rubber magnet member, a metal thin plate, a synthetic resin plate, a side portion It can consist of a metal or plastic tray with an edge.
[0011]
Further, as shown in FIG. 8, the bottom base material 2a is set to be wider than the liquid absorbent material 2, and the side edge portion 2c of the bottom base material extends outside the side edge portion of the liquid absorbent material. can do. By adopting such an outer edge configuration, a waterproof bottom base material having excellent water repellency performance is interposed between the roof surface having reduced water repellency performance and the outer edge of the liquid-absorbing material. Since the liquid does not directly contact the roof surface, it is convenient from the viewpoint of preventing corrosion of the roof iron plate. Further, the flow restricting performance of the member is further enhanced by the water repellency of the exposed bottom base material surface.
Alternatively, the bottom substrate 2a can be constituted by a metal or plastic tray having a side edge.
[0012]
The snow-covering surface 1 is covered with a continuous elongated liquid absorbing material 2. The liquid absorbing material 2 is arranged at intervals, and a heat medium is caused to flow along the liquid absorbing material. This heat medium is a liquid having a property to serve as a priming water for melting snow, for example, warm water such as groundwater. Snow particles absorb the heat medium flowing down along the liquid-absorbing material. If the snow particles absorb a part of the heat medium flowing down from the liquid absorbing material, the white color of the snow disappears and a transparent sherbet is formed. Since the specific gravity of the sherbet is less than 1, if there is a sherbet that floats on the heat medium, the sherbet in the floating state can easily flow along the flow path due to the flow velocity of the heat medium.
The arrangement interval, width and thickness of the liquid-absorbing material, the temperature and flow rate of the heat medium are selection items.
[0013]
The snow-melting water generated by the heat of the heat medium is held by the liquid-absorbing material 2, and a flat heat storage body that impregnates the falling heat medium and the snow-melting water is formed. Although the snowmelt water has a low temperature but possesses a predetermined amount of heat, this heat is also effectively used. In this way, the flow path of the liquid absorbing material forms a flat radiator, and the snow located above the flow path can be melted prior to other parts of the snow.
[0014]
2 and 4 continue in a state in which no snow is accumulated above the flow path, that is, in a state where the heat medium quickly melts snow particles and there is no snow on the flow path, or after the snow has stopped. The figure shows a state where snow melting has progressed around the flow path by flowing down the heat medium. In the figure, reference numeral S indicates remaining snow.
[0015]
If the amount of snowfall is large and the amount of heat held by the heat medium flowing through the flow path of the liquid-absorbing material 2 is less than the amount of heat necessary for immediate snow melting, the snow accumulates. The accumulated snow has a concavity and convexity on the snow surface by melting the snow located above the flow path prior to the snow in the other part because the flow path functions as a flat heat storage heat radiator. Then, the appearance of the uneven surface can increase the exposed surface area of the snow cover layer and promote snow melting by the outside air temperature or direct solar radiation and by the heat transferred from the liquid absorbing material to the snow cover surface.
[0016]
The heat medium is supplied continuously or intermittently. In the case of intermittent supply, it is possible to vary the supply pressure so that a pulse wave is generated in the heat medium flowing down along the flow path. Such intermittent supply may increase the efficiency of sherbet transport.
[0017]
FIG. 5 is a perspective explanatory view showing a specific example of the liquid-absorbing material used in FIG. The liquid-absorbing material 2 shown in the figure includes a main flow path 4 with a small liquid impregnation holding amount and a sub-flow path 5 with a large liquid impregnation holding amount located on both sides of the main flow path 4. A step as shown in the figure is provided between both path portions, and a groove 9 is formed.
The main flow path 4 is thin, and forms a main flow in which a large amount of heat medium that cannot be fully impregnated flows down while sliding on the surface of the path. The sub-flow path with a large liquid impregnation holding amount disposed on both sides of the main flow contains more heat medium than the main flow path, and a slow sub-flow with a relatively low flow rate is formed along this sub-flow path. The main flow and the sub flow of the heat medium are located adjacent to each other and flow down along the entire surface of the liquid absorbing material.
[0018]
FIG. 6 is a perspective explanatory view showing a specific example of the liquid-absorbing material used in FIG. The liquid-absorbing material 2 shown in the figure includes a main flow path 4 with a small liquid impregnation holding amount and a sub-flow path 5 with a large liquid impregnation holding amount located at the side of the main flow path 4. Accordingly, the main flow path 4 forms the main flow of the heat medium along the flow direction of the liquid-absorbing material, and a slow flow with a relatively low flow rate than the main flow is formed on one side of the main flow. The main flow and the sub flow of the heat medium are located adjacent to each other and flow down in a regulated state along the entire surface of the liquid absorbing material.
It is also possible to enclose an electric heating element or a closed pipe in which a heat medium circulates in advance as auxiliary heating means in the flow-down path described above.
[0019]
At least a part of the flow path of the liquid absorbing material can be covered and kept warm by the hydrophobic material 3 along the moving direction of the heat medium. A hollow pipe passage portion is provided in the portion covered with the hydrophobic material, and even if the liquid absorbing material is frozen, the ice can be defrosted by the heat medium flowing through the pipe passage portion.
[0020]
The liquid-absorbing material can be composed of a liquid-absorbing surface layer and a base material layer. The liquid-absorbing material can be attached to the snow-covered surface with an adhesive applied to the surface of the base material layer. In addition, this base material layer is made of a plastic having excellent thermal conductivity including a large amount of iron powder, for example, so that it adheres to an adherend surface made of a magnetic material having a high magnetic permeability by a magnetic action. Or it can comprise a rubber magnet. In addition, you may fix a water absorption raw material so that it may not slip | deviate with respect to a snowy surface using arbitrary fixing means.
[0021]
The flow-down paths can be configured as independent member strips arranged at intervals as shown in FIG. 1, and those adjacent to each other can be connected by an arbitrary material.
[0022]
The liquid-absorbing material comprises a main flow path using a lyophilic fiber, for example, a water-absorbing fiber such as vinylon, or a composite fiber composed of vinylon and polyester, and a secondary flow path is lyophobic such as polyester. A woven fabric, a non-woven fabric, or a knitted fabric formed using fibers can be used. In addition, an arbitrary weaving method can be employed, such as a plain weaving path for the main flow path and a twill weaving with a large amount of fiber used for the sub-flow path. The flow path inferior in liquid absorbency is not necessarily a portion using lyophobic fibers, and includes a flow path inferior in liquid absorbency using lyophilic fibers. Even if lyophilic fibers are used, it can be said that the flow path is inferior in liquid absorbency if the spot absorbability is inferior to that of the lyophobic fiber. The liquid absorbability can be adjusted to some extent by changing the tension of the fiber.
[0023]
The woven fabric is composed of a woven fabric woven using lyophobic warp and weft. In addition to the warp of the woven fabric, a dense portion of the lyophilic warp is woven in a streak shape to make the lyophobic A portion which becomes a main main flow path where lyophilic warp yarns are densely adjacent can be provided adjacent to the portion of the woven fabric material.
[0024]
In addition, the non-woven fabric can be provided with a dense portion of lyophobic fibers serving as a secondary flow path adjacent to a side portion of a dense portion of lyophilic fibers serving as a primary flow path.
[0025]
Further, the woven fabric is composed of a woven fabric woven using lyophilic warp and weft, and in addition to the warp of this woven fabric, a lyophobic warp of a lyophobic warp that forms a secondary flow path on the side. A dense portion may be woven, and a lyophilic woven fabric portion and a lyophobic warp dense portion may be provided adjacent to each other.
[0026]
Alternatively, the woven fabric is composed of a woven fabric woven using lyophilic warp, and in addition to the warp of the woven fabric, a liquid-retaining warp having a higher liquid absorbency than the fabric warp. The dense portions can be woven in a streak shape, and the portion of the lyophilic woven fabric that becomes the secondary flow path and the dense portion of the liquid-retaining warp that becomes the primary flow path can be provided adjacent to each other.
[0027]
Further, the woven fabric is composed of a woven fabric woven using lyophilic warp, and in addition to the warp of the woven fabric, a dense part of the lyophilic warp having a diameter larger than that of the fabric warp. The portion of the lyophilic woven fabric that becomes the secondary flow path and the dense portion of the lyophilic warp of the large diameter that becomes the main flow path can be provided adjacent to each other.
[0028]
The woven fabric is composed of a woven fabric woven using lyophobic warp, and in addition to the warp of the woven fabric, the dense portion of the lyophobic warp having a diameter larger than the fabric warp is streaked. It is also possible to form a dense main flow path of the lyophobic warp yarns having a large diameter adjacent to the portion of the lyophobic woven fabric that is woven into a shape and forms a secondary flow path.
[0029]
Unlike the above-described structure, the liquid-absorbing material is composed of a base layer and any other liquid-absorbing material adhered to the base layer, for example, the main flow path of the powder coating layer and the main flow path. It can be comprised from the powder coating layer inferior to the liquid absorptivity arrange | positioned at the side part of the path | route.
[0030]
The liquid-absorbing material can be composed of a sprayed powder coating layer adhered to the roof surface.
[0031]
Apart from this method, the liquid-absorbing material is composed of a base layer that is poor in liquid absorbability and a rough fine irregular surface portion rich in liquid absorbency formed by processing the surface of this base layer. The part of the surface of the base material layer that is inferior to the above forms a sub-flow path, and the part of the uneven surface rich in liquid absorbency can form the main flow path.
[0032]
Alternatively, the liquid-absorbing material is a mixture of both lyophilic fibers and lyophobic fibers, and the portion corresponding to the main flow path is more lyophilic than the portion corresponding to the sub-flow path adjacent thereto. It can also be configured such that the ratio of the conductive fibers is increased.
[0033]
FIG. 7 shows an example of a snow melting member formed using a woven fabric. In the figure, reference numeral 6 is a warp yarn constituting the main flow path 4. This warp yarn is constituted, for example, by pulling together two twisted composite yarns of polyester (core material) / vinylon (around spiral winding) equivalent to tenth count (cotton yarn equivalent). The side sub-flow path 5 is a twilled portion using a thick polyester twisted yarn as the warp thread 7, and the weft 8 constituting the main flow path 4 and the sub-flow path 5 is eighteenth polyester threads. It is composed of twisted yarn.
[0034]
According to the illustrated woven fabric structure, the vinylon portion of the polyester / vinylon composite warp exhibits excellent liquid absorbency. Although the fiber part of this vinylon shows a shrinking tendency, it moves along polyester and does not affect the woven fabric itself. Further, since the composite warp yarns are arranged so as to be aligned two by two, the heat medium tends to move along the warp yarns.
[0035]
An experiment was conducted in which the above-mentioned flow regulating member having a woven fabric structure was used as a snow melting sheet. The snow melting sheet was used by attaching it to the iron plate roof. The length of the sheet was 3800 mm and the width was 390 mm. In this sheet, four main flow paths (the width of each main flow path is 75 mm) and three sub-flow paths (30 mm) are arranged adjacent to each other. Each of the main flow paths was supplied with 180 cc of ground water at about 12 ° C. per minute. A total of four sheets were used, and each sheet was placed at a spacing of about 50 mm. As a result of the experiment, it was found that the outside air temperature was around 0 ° C, and no snowfall of 3 cm or more was observed under any snowfall condition. The performance of the sheet as a flat radiator is uniformly acting over the entire sheet surface, and this action is a proof that the flow of the heat medium is accurately regulated.
[0036]
When the liquid-absorbing material is composed of a fibrous material, the type of fiber is not limited to that described above. All or part of the material constituting the flow-down path may be made of flame-retardant fiber such as carbon fiber or non-flammable fiber such as glass fiber, and it is preferable to give consideration to fire in advance. The surface properties of such fibers are appropriately adjusted in consideration of the familiarity with the liquid.
[0037]
The number, width dimension, and path length of the main and sub-flow paths are selections. The main flow path and the sub-flow path in FIG. 9 are arranged side by side.
Compared to relatively dry snow with a low water content, in the case of wet snow, it is easy to form a snow bridge on the upper part of the flow path, so the width or number of flow paths should be set large.
[Brief description of the drawings]
FIG. 1 is a perspective explanatory view showing an example used as a snow melting member.
FIG. 2 is a perspective explanatory view showing a snow removal state.
FIG. 3 is an explanatory perspective view showing an example of use as a snow melting member.
FIG. 4 is a perspective explanatory view showing a snow removal state.
FIG. 5 is an explanatory perspective view showing an example of a flow path.
FIG. 6 is a perspective explanatory view showing another example of the flow path.
FIG. 7 is a schematic explanatory view showing an example of a snow melting member made of a woven fabric.
FIG. 8 is an explanatory view showing a flow regulating member in a form in which the width of the bottom substrate is wider than the width of the liquid absorbing material.
FIG. 9 is an explanatory view showing a flow regulating member in a form in which a flow path is adjacent.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Snow cover surface 2 Liquid absorption material 2a Bottom base material 2c Side edge part 3 of bottom base material Hydrophobic material 4 Main flow path 5 Subflow path 6 Main flow path warp 7 Secondary flow path warp 8 Woven fabric weft 9 Main flow Pathway groove

Claims (1)

  A main flow path of arbitrary width that forms a main stream of an exposed fast flow heat medium that has a low liquid content and absorbs part of the flowing heat medium and the remaining part slides on the surface; It is composed of a liquid-absorbing material located on the side and having a sub-flow path that has a larger liquid impregnation amount than the main flow path and forms a sub-flow having a slower flow velocity than the main flow, and the main flow path and the sub-flow path The snow-melting sheet is arranged repeatedly next to the flow path.

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