JP3854008B2 - Oxygen dissolution shield - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is applied to the surface of an open-type water tank or the like, and is arranged so as to float on the water surface and cover the water surface, thereby preventing the dissolution of oxygen in the air from the water surface into the water. It is about the body.
[0002]
[Prior art]
As this type of oxygen-dissolving shield, for example, one in which a large number of resin balls are floated on the water surface is known.
However, in such a resin ball, there is a gap between other adjacent balls, and it is possible to move independently of the other balls. For the reason that the effect cannot be obtained, etc., it was difficult to obtain a satisfactory water surface penetration shielding performance of oxygen in the air.
[0003]
Therefore, a thin hemispherical material that is slightly smaller than the disk is heat-sealed to both sides of the disk-shaped resin thin plate to produce a brazed spherical body (Saturn), and a large number of these are floated on the water surface. (See JP-A-8-193731).
[0004]
In such a spherical body with a flange, a large number of floats are suspended on the surface of the water, so that the portions of the reed overlap each other and can be arranged on the water surface without any gaps. Since it acts so as to suppress, it becomes possible to suppress the generation of water surface waves. Thereby, it is possible to satisfactorily prevent the in-air oxygen from being dissolved into the water surface.
[0005]
[Problems to be solved by the invention]
In order for such an oxygen-dissolving shield composed of a spherical body with a brace to function satisfactorily, it is necessary to float on the water surface in a well-balanced state with the entire surface of the disk including the trough in contact with the water surface. For this reason, in this spherical body with a flange, a float for ensuring buoyancy is provided in one thin plate hemisphere, and a balance resin ball is incorporated in the other hemisphere as a weight.
[0006]
However, because of such a configuration, directionality occurs, and when the front and back are reversed in water, the floating state becomes unstable and it is difficult to satisfactorily cover the water surface.
[0007]
In addition, in the configuration as described above, it is impossible to adjust the buoyancy after manufacture, and it is necessary to set the buoyancy to a predetermined value in advance, but the predetermined value thus set is small. Too much buoyancy due to excessive buoyancy, when it is put together into the water, it becomes difficult to lift off the surroundings and partly sinks into the water, or the predetermined value set as buoyancy is too large As a result, the floating state becomes unstable.
[0008]
Furthermore, in the configuration as described above, since a small thin plate hemisphere is bonded to both sides of the disk-shaped resin thin plate on both sides in the production, both manufacturing costs are increased, resulting in quality variations and significant manufacturing effort. Conveying curing such as soft hemispherical parts and thin cocoons is necessary, which increases transportation costs.
[0009]
In view of such circumstances, in the present invention, there is no problem of directionality such as the front and back when thrown into water, and it is possible to demonstrate an appropriate buoyancy after throwing, It is an object of the present invention to provide an oxygen-dissolving shield that can suppress the cost of transportation and the like.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following means.
That is, the oxygen-dissolving shield according to claim 1 is an oxygen-dissolving shield that prevents the dissolution of oxygen in the air from the water surface into the water by being suspended on the water surface and covering the water surface. There,
It is made of an oxygen-impermeable material, and has a shield body with a configuration in which a flange is provided on the outer peripheral surface of a cylindrical member whose upper and lower surfaces are closed,
Inside the shield body is housed a floating body that exhibits buoyancy when thrown into water,
On the upper and lower surfaces of the shield body, there are provided water guide holes that communicate with the inside and outside of the shield body and that the inner diameter dimension thereof is smaller than the outer diameter dimension of the floating body. It is characterized by.
[0011]
This oxygen-dissolving shield was able to obtain the integral integral buoyancy of the shield body when it was first introduced into the water, and then immersed in the introduced water while introducing water into the shield body. The shield body can be pushed up onto the water surface by the buoyancy of the floating body. Therefore, a large buoyancy can be obtained at the beginning of the submersion, and after the surface has floated on the surface of the water, it is possible to obtain a buoyancy to the extent that the entire surface of the kite contacts the water surface.
[0012]
Further, in the oxygen-dissolving shield according to claim 1 , a certain region including a portion where the water guide hole is provided on the upper and lower surfaces of the shield body has a shape along the shape of the outer peripheral surface of the floating body. It is characterized by being.
[0013]
In order to achieve such a configuration, in this oxygen-dissolving shield, the floating body immersed in the water introduced into the shield body floats inside the shield body, and is fitted to either the upper or lower surface. It becomes possible to fix.
[0014]
The oxygen-dissolving shield according to claim 2 is the oxygen-dissolving shield according to claim 1 , wherein the inside of the shield body is made of an oxygen-impermeable material, and the outer diameter thereof is the water guide. A floating material that is larger than the inner diameter of the hole and smaller than the outer diameter of the floating body and floats on the water surface is housed.
[0015]
In this oxygen-dissolving shield, when the water surface is formed in the shield body, a portion other than the portion occupied by the floating body on the water surface is shielded by the floating material. it can.
[0016]
The oxygen-dissolving shield according to claim 3 is the oxygen-dissolving shield according to claim 1 or 2 , wherein the shield body includes an upper end edge of a bottomed cylindrical lower structure and a covered cylindrical upper part. It is characterized by being formed by fitting the lower end edge of the structure with each other.
[0017]
Due to such a configuration, in this oxygen-dissolving shield, the shield body can be manufactured without performing operations such as heat fusion bonding.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 are views showing an oxygen dissolution shield 1 according to an embodiment of the present invention. FIG. 1 is an elevational sectional view of the oxygen dissolution shield 1 and FIG. 2 is a plan view of the same. 3 is a side view of the same.
[0019]
As shown in these figures, the oxygen-dissolving shield 1 has a configuration in which a floating ball (floating body) 3 and a shielding material (floating material) 4 formed in a spherical shape are housed inside a shield body 2. Yes.
[0020]
The shield body 2 is made of an oxygen-impermeable material, and is similarly provided with a flange 6 made of an oxygen-impermeable material on the outer peripheral surface of the cylindrical member 5 whose upper and lower surfaces are closed. The structure is substantially symmetrical in the vertical direction.
[0021]
Moreover, the center part of the upper surface 2a and the lower surface 2b of the shield body 2 is formed as a protruding portion 7 protruding in a hemispherical shape. The shape of the inner surface 7 a of the protruding portion 7 is a shape along the shape of the outer peripheral surface of the floating ball 3. Further, the projecting portion 7 is provided with a water guide hole 8 that communicates the inside and outside of the tubular member 5. The water guide hole 8 is formed such that its inner diameter is smaller than the outer diameter of the floating ball 3 and the shielding material 4.
[0022]
The shield body 2, the floating ball 3, and the shielding material 4 are all made of an oxygen-impermeable material, and the floating ball 3 and the shielding material 4 can float on the water surface when thrown into water. It is set as the structure which has buoyancy. Further, the buoyancy of the floating ball 3 is such that when the floating ball 3 is fixed to the inner surface 7a of the upper protrusion 7 as shown in FIG. 1, the level of the ridge 6 becomes the same level as the water surface Ws. The size is set so as to be balanced with the weight of the shield body 2.
[0023]
The shield body 2 is formed by fitting the upper structure body 9 and the lower structure body 10 together. The upper structure 9 is formed as a covered cylindrical member, and a recess 12 as shown in an enlarged view in FIG. 4 is provided at the lower edge 9a.
[0024]
The lower structure 10 has a shape in which the flange 6 is integrated with a bottomed cylindrical member, and is provided with a convex portion 13 as shown in an enlarged view in FIG. It has become. Then, by fitting the concave portion 12 and the convex portion 13, the upper structural body 9 and the lower structural body 10 can be integrated to form the shield body 2.
[0025]
The oxygen-dissolving shield 1 configured as described above includes one floating ball 3 and an appropriate amount of shielding material 4 inside the integrally formed lower structural body 10. Similarly, it is manufactured by fitting the integrally formed upper structure 9 from above.
[0026]
Furthermore, when the oxygen dissolution shield 1 manufactured in this way is used, for example, to shield the penetration of oxygen from the water surface of the aquarium at a construction site, it is first calculated in advance from the manhole of the aquarium. Put in as many packages as you need.
[0027]
When throwing into the water tank, the oxygen dissolution shield 1 needs to be fed forward in the direction of the wall surface of the water tank and floated evenly on the water surface as shown in FIG. Either a charging method or a batch-type method in which, after charging several packages, a wave is generated on the water surface and the oxygen dissolution shield 1 is moved to the wall surface side of the water tank is used.
[0028]
Of the oxygen-dissolving shield 1 put in this way, the one that is submerged in water introduces aquarium water into the inside of the shield body 2 from the water guide hole 8 and the level of the jar 6 becomes the same level as the water surface. To surface. Moreover, what is scattered on the water surface sinks to the level of the eaves 6 while introducing aquarium water into the inside of the shield body 2 from the lower water guide hole 8.
[0029]
In any of these cases, in the state of floating on the water surface, the buoyancy of the floating ball 3 and the weight of the shielding body 2 are balanced, and the floating ball 3 pushes up the shielding body 2 and, as shown in FIG. It will be fixed to the inner surface 7a of the protrusion 7 of the shield body 2.
[0030]
In this case, the floating ball 3 is fixed to the inner surface 7 a of the projecting portion 7, thereby maintaining the upper water guide hole 8 in a closed state, whereby air enters the inside of the shield body 2. It works to prevent.
In this case, as shown in FIG. 1, the shielding member 4 functions to shield the water surface formed inside the shielding body 2 from the air.
[0031]
In this way, the oxygen dissolution shield 1 can evenly shield the water surface of the water storage tank as shown in FIG. 5, and can significantly reduce oxygen in the air that melts into the water from the water surface.
[0032]
In the oxygen-dissolving shield 1 described above, the floating ball 3 is housed inside the shield body 2, and the upper and lower surfaces 2 a and 2 b of the shield body 2 communicate with the inside and outside of the shield body 2. Since the water guide hole 8 having an inner diameter smaller than the outer diameter of the floating ball 3 is provided, as described above, the buoyancy of the integral content of the shield body 2 is initially introduced into the water. After that, while introducing water into the inside of the shield body 2, the shield body 2 can be pushed up onto the water surface by the buoyancy of the floating balls 3 immersed in the introduced water. Thereby, it is possible to realize an appropriate buoyancy according to the situation from the time when the water is introduced to the time after the water surface is fixed, and unlike the conventional case, there is no concern that the buoyancy remains underwater. Therefore, more excellent water surface shielding performance can be obtained as compared with the prior art. Further, in this oxygen-dissolving shield 1, the buoyancy is defined by the buoyancy of the floating ball 3. If the buoyancy of the floating ball 3 is ensured, the cylindrical member 5 and the ridge 6 of the shield main body 2. It is also possible to increase the plate thickness. Thereby, since the intensity | strength of the cylindrical member 5 or the cage | basket 6 can be ensured and an advanced conveyance curing etc. become unnecessary, the conveyance cost including a packing cost can be suppressed cheaply.
[0033]
Further, in the above-described oxygen-dissolving shield 1, a certain region including the portion provided with the water guide holes 8 on the upper surface 2 a and the lower surface 2 b of the shield body 2 follows the shape of the outer peripheral surface of the floating ball 3. Due to the shape, the floating ball 3 immersed in the water introduced into the shield body 2 floats in the shield body 2 and is fitted and fixed to either the upper surface 2a or the lower surface 2b. Is possible. Accordingly, when thrown into water, the floating body 3 moves upward and is fitted and fixed regardless of which of the upper surface 2a and the lower surface 2b is above, so that the shield body 2 is fixed on the water surface in a good posture. It becomes possible to do. As a result, unlike conventional ones, the front and back are reversed, and fixing on the water surface in an unstable state may cause the water surface wave-quenching performance to deteriorate and the water surface shielding function to be lost. Absent. Moreover, since the floating ball 3 can close the water guide hole 8 located on the upper side with the above-described configuration, oxygen in the air enters the inside of the shield body 2 through the water guide hole 8 and shields it. Dissolution from the water surface of the body body 2 can be prevented to a minimum.
[0034]
Further, the oxygen-dissolving shield 1 described above is formed inside the shield body 2 by the shielding material 4 made of an oxygen-impermeable material accommodated inside the shield body 2. Since the portion of the water surface other than the portion occupied by the floating ball 3 can be shielded, it is possible to prevent the oxygen in the air inside the shield body 2 from being dissolved. Even if there is water that enters and exits slightly from the water guide hole 8 located at the position, it is possible to prevent a reduction in shielding performance.
[0035]
Further, the above-described oxygen-dissolving shield 1 is formed by fitting the shield main body 2 with the lower end edge 9a of the upper component 9 and the upper edge 10a of the lower component 10 with each other. The shield body 2 can be manufactured without performing operations such as heat fusion bonding, and the manufacturing can be facilitated compared to the conventional case, which can contribute to cost reduction.
[0036]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and the form and the like can be changed.
For example, the shield body 2 may be formed in a substantially hexagonal shape in plan view as shown in FIGS. Even in this case, the water surface can be covered evenly as shown in FIG.
[0037]
【The invention's effect】
As described above, according to the oxygen-dissolving shield according to claim 1, the floating body is accommodated in the shield body, and the inside and outside of the shield body are communicated with the upper and lower surfaces of the shield body. Since the inner diameter dimension is configured to have a water guide hole that is smaller than the outer diameter dimension of the floating body, the buoyancy of the integral content of the shield body can be obtained at the beginning when it is put into the water. While introducing water into the inside of the shield body, the shield body can be pushed up onto the water surface by the buoyancy of the floating body immersed in the introduced water. Thereby, it is possible to realize an appropriate buoyancy according to the situation from the time when the water is introduced to the time after the water surface is fixed, and unlike the conventional case, there is no concern that the buoyancy remains underwater. Therefore, more excellent water surface shielding performance can be obtained as compared with the prior art. Further, in this oxygen-dissolving shield, the buoyancy is defined by the buoyancy of the float, and if the buoyancy of the float can be ensured, it is possible to increase the thickness of the cylindrical member of the shield body and the thickness of the bag. Thereby, since the intensity | strength of a cylindrical member or a cage | basket can be ensured and an advanced conveyance curing etc. can be made unnecessary, the conveyance cost including a packing cost can be suppressed at low cost.
[0038]
Further , according to the oxygen dissolution shield according to claim 1 , the certain region including the portion provided with the water conduction holes in the upper surface and the lower surface of the shield body is formed in a shape along the shape of the outer peripheral surface of the floating body. Therefore, the floating body immersed in the water introduced into the shield body floats up the shield body and can be fitted and fixed to either the upper surface or the lower surface from the inside of the shield body. . Therefore, when thrown into water, the floating body moves upward and fits and fixes, regardless of which of the upper and lower surfaces is up, so that the shield body can be fixed on the water surface in a good posture. Become. As a result, unlike conventional ones, the front and back are reversed, and fixing on the water surface in an unstable state may cause the water surface wave-quenching performance to deteriorate and the water surface shielding function to be lost. Absent. In addition, since the floating body can close the water guide hole located on the upper side with the above structure, oxygen in the air enters the inside of the shield body through the water guide hole, and from the water surface of the shield body. Dissolving can be minimized.
[0039]
According to the oxygen-dissolving shield according to claim 2 , the floating body made of an oxygen-impermeable material is accommodated inside the shield body, and the floating surface of the water surface formed inside the shield body is formed by the floating material. Among them, since the portion other than the portion occupied by the floating body can be shielded, it is possible to prevent oxygen in the air inside the shield body from dissolving in water. Therefore, even if there is water that slightly enters and exits from the water guide hole located on the lower side, it is possible to prevent the shielding performance from being lowered.
[0040]
According to the oxygen-dissolving shield according to claim 3 , since the shield body is formed by fitting the lower end edge of the upper component and the upper edge of the lower component together, The shield body can be manufactured without performing operations such as joining, and the manufacturing can be facilitated and the cost can be reduced as compared with the conventional case.
[Brief description of the drawings]
FIG. 1 is an elevational sectional view of an oxygen dissolution shield schematically showing an embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of the same.
4 is an enlarged sectional view showing a lower end edge and an upper end edge of an upper structure body and a lower structure body that constitute a shield body of the oxygen dissolving shield body shown in FIG. 1; FIG.
FIG. 5 is a plan view showing a situation when the oxygen dissolution shield shown in FIG. 1 is actually used.
FIG. 6 is a plan view of an oxygen-dissolving shield schematically showing another embodiment of the present invention.
FIG. 7 is a side view of the same.
FIG. 8 is a plan view showing a situation when the oxygen dissolution shield shown in FIGS. 6 and 7 is actually used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Oxygen dissolution shield 2 Shield body 2a Upper surface 2b Lower surface 3 Floating ball (floating body)
4 Shielding material (floating material)
5 Cylindrical member 6 鍔 8 Water guide hole 9 Upper structure 9a Lower edge 10 Lower structure 10a Upper edge

Claims (3)

An oxygen-dissolving shield that prevents dissolution of oxygen in the air from the water surface into the water by being suspended on the water surface and covering the water surface, and made of an oxygen-impermeable material, The shield body has a configuration in which a flange is provided on the outer peripheral surface of the cylindrical member whose upper and lower surfaces are closed, and the inside of the shield body exhibits buoyancy when thrown into water. A floating body is housed, and water guide holes are formed on the upper and lower surfaces of the shield body so that the inside and outside of the shield body communicate with each other and the inner diameter dimension thereof is smaller than the outer diameter dimension of the float body. Provided ,
An oxygen-dissolving shield characterized in that a certain region including the portion provided with the water conduction holes in the upper and lower surfaces of the shield body has a shape along the shape of the outer peripheral surface of the floating body. The oxygen-dissolving shield according to claim 1 , wherein the inside of the shield body is made of an oxygen-impermeable material, and an outer diameter thereof is larger than an inner diameter of the water guide hole. An oxygen-dissolving shield characterized by being formed so as to be smaller than the outer diameter of the floating body, and further, a floating material capable of floating on the water surface is accommodated. 3. The oxygen-dissolving shield according to claim 1 , wherein the shield body is configured to fit an upper end edge of a bottomed tubular lower structure and a lower edge of a covered tubular upper structure. An oxygen-dissolving shield formed by the method.

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