JP2000304309A - Structure for covering water surface of water tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a satisfactory performance of covering water surface irrespective of fluctuation of a level in a water tank, by a constitution wherein a water surface covering plate covering the water surface in a state of floating thereon is fitted to the lower end parts of supports suspended from the ceiling of the water tank, so that it can follow the fluctuation of the level of the water surface, regarding a covering structure for shutting off the water surface of the water tank. SOLUTION: A covering structure 1 provided inside a heat storage water tank 2 in air conditioning equipment of a building is equipped with supports 4 suspended from the ceiling 3 of the water tank and with water surface covering plates 5 fitted to the lower end parts of the supports 4. Each support 4 has a constitution wherein the upper end portion of a bolt to the lower end of which the water surface covering plate 5 is fastened by nuts is fitted in an outer tube made of resin so that it can be put in and out of the tube. Each water surface covering plate 5 is constituted in such a manner that a film material having an oxygen intercepting performance is stuck by fusion on the upper and lower surfaces of a heat insulating material made of polypropylene or the like which is formed in the shape of a plate rectangular in a plane view and has a shut-off function. Besides, the water surface covering plates 5 are arranged in a plurality in a plane along the water surface and the abutting portions thereof are covered with the peripheral edge 11a of the film material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shielding structure applied to a water tank having an open water surface to shield the water surface of the water tank.

[0002]

2. Description of the Related Art As is well known, in a facility having a water circulation system having a water tank, such as a heat storage air conditioning system, when the water tank has an open surface, the water is dissolved by oxygen dissolved in the water from the open surface. Oxygen concentration increases, and problems such as corrosion may occur in equipment piping.

In order to solve such a problem, a technique has been proposed in which a large number of resin balls are floated on the water surface of a water tank and the water surface is shielded by these resin balls to prevent oxygen from being dissolved in water.

[0004]

However, such a resin ball not only requires time and effort to transport and lay, but also the floating state becomes unstable due to fluctuations in water level or water flow in the water tank, and sufficient water surface shielding is required. In some cases, performance could not be demonstrated.

Further, when the water tank is inspected and cleaned, it is necessary to drain the water from the water tank. At this time, it is necessary to collect the resin balls, which increases the labor and cost for maintenance such as inspection and cleaning. Had become something.

Therefore, in the present invention, a water tank capable of exhibiting a sufficient water surface shielding performance without being affected by fluctuations in the water level in the water tank, and not obstructing inspection and cleaning of the water tank. It is an object to provide a water surface shielding structure.

[0007]

Means for Solving the Problems To solve the above problems, the present invention employs the following means. The tank water surface shielding structure according to claim 1 is a tank water surface shielding structure applied to a water tank having an open water surface to shield the water surface of the water tank, wherein a support member is suspended from a ceiling of the water tank, A water surface shielding plate is attached to a lower end portion of the support member so as to cover the water surface while floating on the water surface, and to be able to follow a water level fluctuation of the water surface.

[0008] With this configuration, when the water level fluctuates in the water tank, the water surface shielding plate keeps the water surface covered.
Since it can move up and down following the water level fluctuation, it is possible to always shield the water surface.

The water tank water surface shielding structure according to a second aspect is the water tank water surface shielding structure according to the first aspect, wherein the water surface shielding plate includes a plate-shaped heat insulating material and a heat insulating material. And an oxygen impermeable film material attached to the lower surface.

[0010] With such a configuration, a heat insulating effect can be obtained by the water surface shielding plate.

The water surface shielding structure according to a third aspect is the water tank shielding structure according to the second aspect, wherein the water surface is shielded by arranging a plurality of the water surface shielding plates along the water surface. It is characterized in that these water surface shielding plates are formed in a state where the peripheral edge of the film material is protruded in a direction parallel to the thermal insulator from at least a fixed portion of the peripheral edge of the thermal insulator. I have.

[0012] With such a configuration, when the water surface shielding plates are arranged, the gap generated between the heat insulating materials can be shielded by the film material disposed on the periphery of the heat insulating material.

According to a fourth aspect of the present invention, there is provided an aquarium water surface shielding structure according to any one of the first to third aspects, wherein the support member is formed to be extendable and contractable, and the water surface shielding plate is provided. Are fixed to the lower end of the support member.

With such a configuration, this water tank water surface shielding structure acts to allow vertical displacement of the water surface shielding plate by expanding and contracting the support material when the water level of the water tank fluctuates.

According to a fifth aspect of the present invention, there is provided an aquarium water surface shielding structure according to any one of the first to third aspects, wherein the water surface shielding plate is provided with through holes vertically penetrating therethrough. The lower end of the support member is inserted through the through hole.

With this configuration, in the water tank water surface shielding structure, when the water level fluctuates on the water surface of the water tank, the water surface shielding plate is guided up and down by the support material inserted through the through hole. It will be.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing an embodiment of the present invention, in which reference numeral 1 indicates a shielding structure. The shielding structure 1 is installed inside a heat storage water tank 2 used in a building air conditioner, and is attached to a support member 4 suspended from a ceiling 3 of the heat storage water tank 2 and a lower end of the support member 4. A water surface shielding plate 5 is provided.

The supporting member 4 is, as shown in FIG.
An outer cylinder 6 made of resin, a bolt 7, and nuts 8, 8 screwed to the lower end of the bolt 7 to fix the water surface shielding plate 5 from above and below are provided. The outer cylinder 6 and the bolt 7 are in a loosely fitted state, so that the support member 4 can expand and contract.

As shown in FIGS. 3, 4, and 5, the water surface shielding plate 5 includes a heat insulating material 10 made of polypropylene, polystyrene, or the like and formed in a rectangular shape in a plan view and having a heat insulating function. A film material 11 made of polypropylene, PET, or the like and having oxygen shielding performance, which is fusion-bonded to the upper surface 10a and the lower surface 10b of the material 10, is provided. Further, by being formed of these materials, the water surface shielding plate 5 is configured to be able to float on the water surface.

Thus, when an accidental water level fluctuation occurs on the water surface of the heat storage water tank 2, the water surface shielding plate 5
The length of the support member 4 (the outer cylinder 6 and the bolt 7) changes due to the buoyancy or weight of the water. It becomes possible.

Further, as shown in FIGS. 4 and 5, the heat insulating material 10 is formed such that both the vertical section and the side section are substantially parallelograms. Further, as shown in FIGS. 3, 4, and 5, the film material 11 has a part of a peripheral edge 11a,
The heat insulating material 10 is disposed so as to protrude from the upper surface 10 a and the lower surface 10 b in a direction parallel to the heat insulating material 10. In this case, the peripheral edge 11a of the film material 11 disposed on the upper surface 10a of the heat insulating material 10 is disposed so as to protrude from two sides 10c, 10c adjacent to each other among the four sides constituting the upper surface 10a. The periphery 11a of the film material 11 arranged on the lower surface 10b of the upper surface 10b is arranged so as to project from the two sides 10d, 10d of the lower surface 10b symmetrically located with the two sides 10c, 10c of the upper surface 10a in plan view. ing.

Further, as shown in FIG. 1, the water surface Ws is shielded by arranging a plurality of the water surface shielding plates 5 in a plane along the water surface Ws in the heat storage water tank 2 as shown in FIG. The Rukoto. In this case, the water surface shielding plate 5 is arranged such that the side end surfaces 12 constituting the peripheral edge of the heat insulating material 10 are parallel to each other, and the upper and lower of the gap 13 formed between the side end surfaces 12, 12 Rim 11a
Are arranged to cover.

In the shielding structure 1 formed as described above, the water surface shielding plate 5 is supported by the extendable support member 4 suspended from the ceiling of the heat storage water tank 2 and floats on the water surface Ws. To cover the water surface Ws
When the position is changed, the support member 4 expands and contracts, so that the position of the water surface shielding plate 5 moves up and down so as to be at the same level as the position of the water surface Ws. In this way, compared to the case where the water surface is shielded using resin balls as before, the water level fluctuation does not impair the water surface shielding performance, prevents the dissolution of oxygen into the water, and prevents the progress of pipe corrosion. Can be very slow.

Further, since the shielding structure 1 is configured so that the water surface shielding plate 5 is hung from the ceiling 3, unlike the related art, there is no need to collect resin balls when cleaning and checking the heat storage water tank 2. Thereby, the labor and cost for maintenance can be significantly reduced.

Further, in the above-mentioned shielding structure 1, the water surface shielding plate 5 is composed of a plate-shaped heat insulating material 10 and a heat insulating material 10
Since it is composed of the oxygen-impermeable film material 11 attached to the upper and lower surfaces, not only a shielding effect against oxygen dissolved on the water surface but also a heat insulating effect can be obtained. Therefore,
By using the shielding structure 1, heat loss can be greatly reduced, and the heat insulation work on the ceiling part can be omitted in the heat insulation work on the water storage tank, so that the construction cost can be reduced.

Further, the above-mentioned shielding structure 1 has a structure in which a plurality of water surface shielding plates 5 are arranged along the water surface Ws so that the water surface W
s is shielded, so that the horizontal shielding plate 5
By changing the combination of each other, it can be applied to water tanks of various shapes, and the versatility is high. Further, in this case, the gap 13 located between the side end faces 12 of the adjacent water surface shielding plates 5 can be shielded by the peripheral edge 11a of the film material 11 provided so as to protrude from the peripheral edge of the heat insulating material 10. Good oxygen shielding performance can be ensured.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and another configuration may be adopted for details of the design and the like. .

For example, as shown in a shielding structure 1 ′ shown in FIG. 6, an upper end 15 a of a resin hanging bolt 15 is fixed to the ceiling 3, while a resin sleeve (penetrating) penetrates the water surface shielding plate 5 in the vertical direction. Holes 16) and the suspension bolts 1
5 may be inserted into the sleeve 16 and a bolt 8 for preventing the water surface shielding plate 5 from dropping may be provided. In this case, as the position of the water surface Ws fluctuates up and down,
In a state where the water surface shielding plate 5 is floating on the water surface Ws, the water surface shielding plate 5 is guided by the suspension bolts 15 and is displaced up and down, whereby the same water surface shielding function as in the above-described embodiment is exhibited. .

Further, the above-described shielding structures 1 and 1 ′ have a structure in which the outer cylinder 6 of the support member 4 or the upper end 15 a of the suspension bolt 15 is mounted on the ceiling 3 of the heat storage water tank 2. It is preferable that the heat storage tank be introduced when the water tank 2 is newly installed, but the present invention is not limited to this. The heat storage tank can be introduced into an existing heat storage tank as long as the heat storage tank has no influence even if it is not used during the construction period. is there.

[0030]

As described above, in the water tank water surface shielding structure according to the first aspect, the water surface shielding plate is supported by the support material suspended from the ceiling of the water tank, and floats on the water surface. Since it is attached so as to cover the water surface and to follow the water level fluctuation of the water surface, even if the position of the water surface changes, the state in which the water surface shielding plate always covers the water surface can be maintained. In this way, compared to the case where the water surface is shielded using resin balls as before, the water level fluctuation does not impair the water surface shielding performance, prevents the dissolution of oxygen into the water, and prevents the progress of pipe corrosion. Can be very slow. Furthermore, in this case, since the water surface shielding plate is configured to be hung from the ceiling, unlike the related art,
There is no need to collect the resin balls at the time of cleaning / inspection of the heat storage water tank, so that the maintenance labor and cost can be significantly reduced.

According to the water tank water surface shielding structure of the second aspect, the water surface shielding plate comprises a heat insulating material formed in a plate shape and an oxygen impermeable film material attached to the upper and lower surfaces of the heat insulating material. Therefore, not only a shielding effect against oxygen dissolved on the water surface but also a heat insulating effect can be obtained. Therefore, by using this water tank water surface shielding structure, the heat loss can be greatly reduced, and the heat insulating work for the ceiling can be omitted in the heat insulating work for the water storage tank, so that the construction cost can be reduced.

According to the water tank water surface shielding structure of the third aspect, the water surface is shielded by arranging a plurality of water surface shielding plates along the water surface. By changing, it is possible to apply to water tanks of various shapes, and the versatility is high.
Further, in this case, since the gap between the heat insulating materials can be covered by the peripheral edge of the film material, it is possible to ensure good oxygen shielding performance.

According to the water tank water surface shielding structure of the fourth aspect, the support member is formed to be stretchable and the water surface shield plate is fixed to the lower end portion of the support member. The vertical displacement of the water surface shielding plate is allowed by the expansion and contraction, and thus, it is possible to follow the water level fluctuation while the water surface shielding plate shields the water surface well. Therefore, the inventions of claims 1 to 3 can be favorably realized.

According to the water tank water surface shielding structure of the fifth aspect, the water surface shielding plate can be displaced up and down by being guided by the support material inserted through the through-hole. It is possible to follow the water level fluctuation while satisfactorily shielding the water surface, and the inventions of claims 1 to 3 can be favorably realized.

[Brief description of the drawings]

FIG. 1 is an elevational sectional view of a shielding structure schematically showing an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view of a support member used in the shielding structure shown in FIG.

FIG. 3 is a plan view of a water surface shielding plate used in the shielding structure shown in FIG.

FIG. 4 is a sectional view taken along the line II in FIG. 3;

FIG. 5 is a sectional view taken along line II-II in FIG. 3;

FIG. 6 is an elevational sectional view of a shielding structure schematically showing another embodiment of the present invention.

[Explanation of symbols]

 1, 1 'shielding structure 2 heat storage water tank 3 ceiling 4 support material 5 water surface shield plate 10 heat insulating plate 11 film material 12 peripheral edge 15 hanging bolt (support material) 16 sleeve (through hole) Ws water surface

Claims (5)

[Claims] 1. A water tank water surface shielding structure applied to a water tank having an open water surface to shield the water surface of the water tank, wherein a supporting material is suspended from a ceiling of the water tank, and a lower end of the supporting material is provided. A water-surface shielding plate, wherein the water-surface shielding plate is attached so as to cover the water surface while floating on the water surface, and to be able to follow the water level fluctuation of the water surface. 2. The aquarium water surface shielding structure according to claim 1, wherein the water surface shielding plate has a plate-like heat insulating material and an oxygen impermeable material attached to upper and lower surfaces of the heat insulating material. A water tank shielding structure, characterized by comprising a film material. 3. The water tank water surface shielding structure according to claim 2, wherein the water surface is shielded by arranging a plurality of the water surface shielding plates in a plane along the water surface. A water tank shielding structure, wherein a peripheral edge of the film material is formed so as to protrude in a direction parallel to the thermal insulator from at least a predetermined portion of the peripheral edge of the thermal insulator. 4. The water tank water surface shielding structure according to claim 1, wherein the support member is formed to be stretchable, and the water surface shield plate is fixed to a lower end portion of the support member. A water tank water surface shielding structure, characterized in that: 5. The aquarium water surface shielding structure according to claim 1, wherein the water surface shielding plate is provided with a through hole vertically penetrating therethrough, and a lower end portion of the supporting member is A water tank water surface shielding structure, which is inserted through the through hole.