JP5027761B2 - Covering device and method of using the same - Google Patents

Description

  The present invention relates to a cover device used to cover the upper side of a water and sewage facility.

  In water and sewage facilities such as the first sedimentation basin, reaction tank, final sedimentation basin, coagulation sedimentation basin, sand filtration pond, and distribution pond, the purpose is to prevent the growth of algae, the spread of odors, and the inclusion of foreign substances due to sunlight irradiation. Therefore, the upper part of the water and sewage facility is covered with a cover lid, except when necessary at the time of sampling.

  In recent years, paying attention to the fact that this water and sewage facility is provided in a large area in a place with good solar radiation conditions, a solar cell module such as a solar cell panel is installed on the upper surface of the cover to generate solar power. Attempts have been made (see Patent Documents 1 and 2).

  As shown in Patent Document 1, usually, the cover has an upper surface that is raised in an arc shape in the longitudinal direction, and a plurality of covers are arranged adjacent to each other in the width direction so as to be bridged above the water and sewage facilities. A commonly used method for opening and closing the cover is a method in which two workers each grab and lift and move a handle provided at an end in the length direction of the cover.

  Therefore, the cover is generally made with a weight of 40 kg or less so that it can be lifted by two workers. However, when installing a solar cell module on the upper surface of the cover, a certain standard is required. The size of the cover must be increased according to the size of the solar cell module manufactured in step 1. Therefore, the weight of the cover body increases and the weight of the solar cell module is added to increase the total weight of the cover. However, there was a problem that it was difficult for two workers to lift.

In addition, as shown in Patent Document 2, there is a method of opening the upper side of the water and sewage facility by sliding the cover in the width direction and overlapping the other cover, but opening the water collection In general, when such a slide type cover is used, the overlapping part of the cover is shaded during the work (when opening), and in this part, the upper part of the cover is covered. Since the installed solar cell module is not exposed to sunlight, it cannot generate power.
JP 2005-340704 A JP 2002-43609 A

  The present invention has been made in view of such a conventional situation, and the object of the present invention is to allow the opening and closing of the cover to be easily opened and closed even by two or fewer workers. An object of the present invention is to provide a cover device and a method of using the same so that the solar cell module installed on the upper surface of the cover can be exposed to sunlight to obtain a power generation state even when it is in a state.

  In order to achieve the above object, according to the present invention, the following covering device and a method for using the same are provided.

[1] A cover device for covering the upper side of a water and sewage facility, the upper surface of which is raised in an arc shape in the longitudinal direction or has an inclined surface that is inclined linearly, and the sun extends along the upper surface. A plurality of cover covers on which the battery modules are installed; and a rotary shaft that is horizontally installed on the casing that forms the water and sewage facility, wherein the plurality of cover covers have a width direction that coincides with an axial direction of the rotary shaft are adjacently disposed in a state of being supported rotatably by said rotary shaft so as to, it is possible the opening and closing the respective covering by pivoting up and down one end portion in the longitudinal direction of the covering as an opening and closing end, the In a state where each cover is closed, an end in the width direction of each cover overlaps with an end in the width direction of another adjacent cover in the vertical direction, and the rotation axis in the longitudinal direction of the cover A covering device having a structure in which the upper and lower positional relations in the overlap of the end portions are interchanged with the support position of as a boundary .

[2] a distance from said end opposite to the open side end portion in the longitudinal direction of the covering to the center of the rotary shaft and L _1, from said lower surface of each covering in a state in which the respective covering is closed wherein when the distance to the water surface at the highest water level of the water contained in the water and sewage facilities and H _1, covering device according to the L ₁ and H ₁ satisfy the relationship _{L 1 <H 1 [1]} .

[3] The cover device according to [1] or [2], wherein each cover has a structure that can be removed from the rotating shaft by an operation of lifting and moving each cover.

[4] When a part of the plurality of covers is removed from the rotation shaft, the other cover is slid along the rotation shaft, thereby opening the other cover by the removal. The covering device according to [3], wherein the covering device has a structure movable to a part.

[5] Between the adjacent cover covers, the solar cell modules installed on the upper surfaces of the cover covers are electrically connected to each other by a cable, and one of the adjacent cover covers is open and the other is closed The cover device according to any one of [1] to [4], wherein the cable has a length sufficient to maintain a connected state, or is extendable so as to maintain the connected state.

[6] Between the adjacent cover covers, the solar cell modules installed on the upper surfaces of the cover covers are electrically connected to each other by a cable, and one of the adjacent cover covers has a width equal to the width of the cover cover. The cover device according to any one of [1] to [4], wherein the cable has a length sufficient to maintain a connected state even when moved in a direction, or is extendable to maintain the connected state. .

[7] The cover device according to any one of [1] to [6], wherein the rotary shaft has a structure that can be detached from the housing by an operation of lifting and moving the rotary shaft.

[8] An extendable tension rod is provided that maintains an inclination angle of the cover at a desired angle by being interposed between the cover and the housing while the cover is open [1] The cover apparatus in any one of-[7].

[ 9 ] In the overlapping of the end portions, a rubber layer for sealing is formed on the upper surface of the lower end portion and / or the lower surface of the upper end portion [1] to [8]. ] The cover apparatus in any one of.

[ 10 ] The cover device according to any one of [1] to [ 9 ], wherein a spray pipe for spraying the on-site treated water of the water and sewage facility is provided on the top surface of the cover.

[ 11 ] Of the covering device according to any one of [1] to [ 10 ], the covering device is a method of using an upper surface of the covering device that is raised in an arc shape in the longitudinal direction, and the covering device is connected to each covering device. The longitudinal direction of the cover is arranged in the north-south direction, and the opening / closing side end is on the north side, and the inclination angle of the cover is 5 to 40 ° while each cover is open. How to use the covering device (first method of use).

[ 12 ] Of the covering apparatus according to any one of [1] to [ 10 ], the covering cover has an inclined surface that is linearly inclined in the longitudinal direction. The apparatus is arranged so that the longitudinal direction of each cover is in the north-south direction, and the lower side of the slope in the inclined surface is on the south side, and while the cover is open and closed The method of using the cover device (second method of use) so that the angle of the inclined surface with respect to the horizontal direction is 5 to 40 °.

  According to the cover device of the present invention, even if the cover has increased in weight due to the installation of the solar cell module, the cover can be easily opened and closed by a single worker by adopting a structure that opens and closes up and down around the rotation axis. Can be done. In addition, unlike the conventional slide-type cover, a part of the solar cell module installed on the upper surface of the cover is not shaded by overlapping the cover when opening, so even when the cover is open, It is possible to continue the power generation state when sunlight hits almost the entire battery module. Furthermore, according to the method of using the cover device of the present invention, the solar cell in which the cover is tilted at the upper surface of the cover by utilizing the feature of the cover device of the present invention that the cover opens and closes up and down with the rotation axis as a base point. By setting to a predetermined angle at which sunlight hits the module at an ideal incident angle, the power generation efficiency can be improved and the amount of generated power can be increased.

  Hereinafter, the present invention will be described based on specific embodiments, but the present invention should not be construed as being limited thereto, and based on the knowledge of those skilled in the art without departing from the scope of the present invention. Various changes, modifications, and improvements can be added.

  1 and 2 show an example of an embodiment of a cover device according to the present invention. FIG. 1 is a plan view seen from above, and FIG. 2 is a side view seen from the axial direction of a rotating shaft. The cover apparatus which concerns on this invention is provided with the some cover 3 which covers the upper direction of a water and sewage facility, and the rotating shaft 2 which supports these cover 3 so that rotation is possible. In the present invention, the “water supply and sewerage facility” means a water tank that performs various treatments of water and sewage such as a first sedimentation basin, a reaction tank, a final sedimentation basin, a coagulation sedimentation basin, a sand filtration pond, and a distribution pond, and stores water. Means a pond.

  The upper surface of each cover 3 swells in an arc shape in the longitudinal direction, and the solar cell module 5 is installed along the upper surface. Here, the “arc shape” includes not only a perfect arc shape but also a shape similar to an arc shape generally called an arch shape or a dome shape. If the upper surface of the cover 3 is formed in an arc shape and the solar cell module 5 is installed along the shape, rain and snow that have fallen on the solar cell module 5 will naturally flow down and will not stay on the solar cell module 5. Therefore, even when there is snowfall, a large amount of snow is hardly generated on the solar cell module 5, and an increase in the weight of the cover due to the snowfall is also reduced. As shown in FIG. 5, each cover 3 may have an inclined surface 9 whose upper surface is linearly inclined in the longitudinal direction. In this case, the same effect as in the case of the arc shape is obtained. can get. In addition, when such an inclined surface 9 is provided, there is an advantage that even the solar cell module 5 that is difficult to install can be easily installed on the upper surface curved in an arc shape.

  The rotary shaft 2 is installed horizontally on a housing 20 that forms a water and sewage facility. The plurality of cover lids 3 are arranged adjacent to each other in a state in which the width direction (direction orthogonal to the longitudinal direction) and the axial direction of the rotary shaft 2 coincide with each other so that the rotary shaft 2 can be rotated. Covers the water supply and sewerage facilities. Each cover 3 supported on the rotary shaft 2 in this way has one end in the longitudinal direction as an open / close side end 11 and is opened and closed by rotating the open / close side end 11 up and down around the rotary shaft 2. Can be made. The number of the cover lids 3 arranged adjacent to each other is not particularly limited, and can be appropriately determined depending on the area of the water and sewage facility to be covered with the cover lid 3.

In covering device of the present invention having such a structure, as shown in FIG. 3, the distance to the center of the rotation shaft 2 and L ₂ from the closing end 11 of the covering 3, perpendicular to the longitudinal direction of the covering 3 The mass of the right side divided body and the mass of the left side divided body of the cover 3 that is divided into right and left by the straight line 40 passing through the center of the rotating shaft 2 are P ₁ and P _{2 in this} order, respectively. the distance to the center of gravity and l _1, the distance from the center of the rotary shaft 2 to the center of gravity of the left split body and l _2, the worker lifts rotated (upwardly with the opening and closing end 11 of the covering 3 ) When the mass applied to the worker is P, the moment M of the force is expressed by the following equation (1), and the following equation (2) is derived from this equation.
M = P ₂ × l ₂ −P ₁ × l ₂ = P × L ₂ (1)
P = (P ₂ × l ₂ −P ₁ × l ₂ ) / L ₂ (2)

Here, for example, when the mass per cover lid 3 is 85 kg, L ₂ is 3500 mm, l ₁ is 500 mm, l ₂ is 1500 mm, P ₁ is 25 kg, and P ₂ is 60 kg, the above formula (2 Therefore, P is about 22 kg, which is not much different from the mass (20 kg) added to each worker when the two workers lift and hold both ends of the 40 kg cover. Therefore, in the cover device of the present invention, even when a cover whose mass has been greatly increased by installing the solar cell module on the upper surface is used, it can be easily opened and closed by one worker. It is.

  In the cover device of the present invention, when the cover 3 is supported by the rotary shaft 2 at the center of the cover 3 in the longitudinal direction, the force required for the opening / closing operation is minimized. When the portion 11 is lifted, the end portion (non-opening / closing side end portion) 13 opposite to the opening / closing side end portion 11 is turned downward to reach the maximum distance from the horizontal position, and the non-opening / closing side end portion 13 is There is a risk of being immersed in the water and sewage 30 housed in the water and sewage facility, or a part of the solar cell module 5 may be shaded.

In covering device of the present invention, to avoid such a situation, as shown in FIG. 4, the distance from the non-opening side end portion 13 to the center of the rotation shaft 2 and L _1, each covering 3 is closed when the state of the distance to the water surface at the highest water level in the upper and lower water 30 accommodated in water and wastewater facilities from the lower surface of the covering 3 in (longitudinal direction state that is a horizontal direction of the covering 3) was H _1, L It is preferable to set the support position of the cover 3 by the rotating shaft 2 so that ₁ and H ₁ satisfy the relationship of L ₁ <H ₁ .

In the case where the support position of the cover 3 by the rotary shaft 2 is set to a position that does not satisfy the relationship L ₁ <H ₁ for reasons such as giving priority to reducing the force required for the opening / closing operation, the cover 3 When the open / close side end 11 is lifted (when the cover 3 is opened), the non-open / close side end 13 is immersed in the water and sewage 30 or a part of the solar cell module 5 is shaded. In order to prevent this, it is preferable to provide a stopper that limits the inclination angle of the cover 3 so as not to exceed a predetermined angle. Here, “the inclination angle of the cover” means an angle θ formed by the longitudinal direction of the cover 3 and the horizontal direction.

  When the support position of the cover 3 by the rotating shaft 2 is closer to the non-open / close side end 13 than the center in the longitudinal direction of the cover 3, the open / close side end 11 of the cover 3 is lower than the horizontal position. In order to keep the longitudinal direction in a horizontal direction when the cover 3 is in a closed state, as shown in FIG. 20 is preferably provided with a cover receiving bracket 23 that supports the open / close end 11 of the cover 3. Furthermore, in order to improve the sealing degree between the non-opening / closing-side end portion 13 and the housing 20 when each cover 3 is closed, the housing 20 is connected to the non-opening / closing-side end portion 13 and the housing 20. It is preferable to provide a rubber seal packing 21 that seals the gap.

  As a support structure of the cover 3 by the rotating shaft 2, for example, a bearing may be attached to the cover 3 and the rotating shaft 2 may be held by the bearing, but equipment installed in the water tank (for example, aeration equipment or the like) In consideration of workability when performing large-scale maintenance such as loading and unloading, it is preferable to have a structure in which each cover can be detached from the rotating shaft by simply lifting and moving each cover. Specifically, for example, as shown in FIG. 4, a groove 6 having a semicircular cross section corresponding to the diameter of the rotary shaft 2 is formed on the lower surface of the cover 2, and the groove 6 is fitted to the rotary shaft. If it is set as a structure, the cover 3 can be easily removed from the rotating shaft 2 only by lifting up the cover 3, and attachment of the removed cover 3 to the rotating shaft 2 is also easy. In order to facilitate opening / closing and removal of the cover 3, it is preferable to provide handles 17 and 18 near both ends in the longitudinal direction of the cover 3.

  Further, in the cover device of the present invention, when a part of the plurality of cover covers is removed from the rotation shaft, the other cover is slid along the rotation shaft. It is preferable to have a structure in which the other cover can be moved to the generated opening. As described above, a groove 6 having a semicircular cross section corresponding to the diameter of the rotary shaft 2 is formed on the lower surface of the cover 3, and the groove 6 is fitted to the rotary shaft 2. It can also be moved by simple sliding. With such a slidable structure, the position of the opening can be easily changed, and various positions inside the water and sewage facility can be accessed simply by removing a part of the cover from the rotating shaft. .

  Each cover used in the cover device of the present invention is provided with a solar cell module on the upper surface thereof, but for collecting power generated by each solar cell module, between the adjacent cover It is preferable that the solar cell modules installed on the upper surface of the cover are electrically connected by a cable. And in this case, in order to always maintain a stable connection state, even when one of the adjacent cover lids is open and the other is closed, the cable has a length that can maintain the connection state, It is preferable that it can be expanded and contracted so that the connected state can be maintained. In addition, when a part of the cover is removed from the rotating shaft as described above, the cable connected to the solar cell module on the cover is removed, and then the solar cell modules on the cover remaining on the rotating shaft are removed. In order to facilitate the removal and connection of the cable at this time, it is preferable that the connecting portion between the solar cell module and the cable be detachable by a connector or the like.

  In addition, the movement distance at the time of movement by sliding the cover as described above is considered to be about the same distance as the width of the cover, but in such a case, in order to maintain a stable connection state, Even when one of the adjacent covers is moved in the width direction by the same distance as the width of the cover, the cable has a length that can maintain the connection state or can be stretchable so that the connection state can be maintained. preferable. In addition, a system power supply is usually installed around the cover device provided with the solar cell module as in the present invention, but the solar cell module provided on the upper surface of the cover lid located near the system power supply is It is preferable to be connected to the system power supply by an extendable cable. In addition, the cable which can be expanded / contracted is a cable which has been made elastic by curling or the like.

  During large-scale maintenance, all the covers may be removed from the rotating shaft and temporarily placed in another location. The distance between adjacent temporarily placed covers is the sun installed on the top of these covers. If it is below the full length or extension limit of the cable which connects battery modules, a connection state can be maintained even during the said maintenance and it is possible to generate electric power. In addition, when the connection part between the solar cell module and the cable is detachable with a connector or the like as described above, the power generation between them cannot be performed by releasing the connection between them. The cable can be temporarily placed at a distance exceeding the total length or extension limit of the cable.

  Further, in the cover device of the present invention, not only the cover but also the rotary shaft needs to be removed. In order to make it easier to perform a larger maintenance once every few years, the lift shaft is simply lifted and moved. By this operation, it is preferable that the rotary shaft itself be structured to be removable from the casing forming the water and sewage facility. For example, if a U-shaped groove is formed in a portion where the rotating shaft of the casing is installed (periphery of the casing surrounding water and sewage), and the rotating shaft is fitted in the groove, the rotating shaft The rotating shaft can be easily removed from the housing simply by lifting up, and the detached rotating shaft can be easily attached to the housing.

  In the cover device of the present invention, the cover is opened so that the cover is not accidentally closed and the operator is injured while the cover is opened and water is collected. It is preferable to provide a tension rod that is interposed between the cover and the casing while being fixed with the cover being opened. It is preferable that the tension rod has a structure that can be expanded and contracted so that the inclination angle of the cover lid can be adjusted to a desired angle. Moreover, it is preferable to provide a fixing tool that can be fixed to the cover and the casing by hooking the end of the tension rod so as to withstand strong wind from the opening side.

  6 to 10 show another example of the embodiment of the cover device according to the present invention, FIG. 6 is a plan view seen from above, FIG. 7 is a cross-sectional view taken along line AA in FIG. 6, and FIG. 6 is a cross-sectional view taken along line BB in FIG. FIG. 9 is a perspective view showing one of the adjacent cover covers, and FIG. 10 is a perspective view showing the other of the adjacent cover covers.

  In this embodiment, in the state where each cover is closed, the end in the width direction of each cover overlaps with the end in the width direction of another adjacent cover in the vertical direction, and the rotation axis in the longitudinal direction of the cover The upper and lower positional relations in the overlapping of the end portions are interchanged with the support position of as a boundary.

  That is, when it demonstrates based on FIGS. 6-10, the edge part 7a in the width direction of the cover 3a adjoins in the range from the said support position to the opening-and-closing side edge part 11 by using the support position by the rotating shaft 2 as a boundary. Both end portions overlap so as to be above the end portion 7b in the width direction of the cover 3b, and in the range from the support position by the rotary shaft 2 to the non-opening / closing side end portion 13, the end portion 7b in the width direction of the cover 3b is Both end portions overlap each other so as to be above the end portion 7a in the width direction of the adjacent cover lid 3a.

  By setting it as such a structure, the sealing degree between adjacent cover 3a, 3b can be raised. Further, in this overlapping of the end portions, if a rubber layer for sealing (rubber seal packing) is formed on the upper surface of the lower end portion and / or the lower surface of the upper end portion, the sealing degree is further improved. In the embodiment shown in FIGS. 6 to 10, the rubber layer 15 is formed on the upper surface of the lower end portion. In the structure in which the end portions overlap in this way, the cover 3a can be opened by opening the open / close side end 11 even when the adjacent cover 3b is closed. In the range from the support position by the rotating shaft 2 to the opening / closing side end 11, the end 7 b in the width direction is on the lower side. Therefore, the opening / closing side end 11 cannot be lifted alone, and is desired to be in an open state. In some cases, it is necessary to lift the open / close side end 11 together with the adjacent cover 7a.

  9 and 10 show examples of the cover whose upper surface is raised in an arc shape in the longitudinal direction. In this embodiment, the upper surface is linear in the longitudinal direction as shown in FIGS. You may use the cover which has the inclined surface 9 inclined for the adjacent one cover 3a and the other cover 3b.

  In the cover apparatus of this invention, it is preferable to provide the piping for spraying for spraying the in-process treated water of a water and sewage facility on the upper surface of a cover. Generally, since the power generation efficiency of the solar cell module decreases as the temperature rises, the on-site treated water (normal water temperature is about 15 to 20 ° C.) is sprayed from such a spray pipe to cool the solar cell module, If the temperature rise is suppressed, the power generation efficiency can be improved.

  The material of the cover used in the cover device of the present invention is not particularly limited, but is preferably lightweight from the viewpoint of facilitating opening and closing operations, for example, glass fiber reinforced resin (FRP) or the like is a suitable material As mentioned. In addition, the material of the rotating shaft is not particularly limited, but it needs to be strong enough to support the number of lids necessary to cover the upper side of the water and sewage facilities and to be resistant to water and sewage. For example, stainless steel Etc. are mentioned as suitable materials.

  The first method of using the cover device of the present invention is a method of using the cover device of the present invention described so far, as shown in FIG. 2, in which the upper surface of the cover 3 is raised in an arc shape in the longitudinal direction. . In this method of use, the cover device is arranged such that the longitudinal direction of each cover 3 is in the north-south direction and the opening / closing side end 11 of each cover 3 is on the north side, and each cover 3 is opened. During the operation, the inclination angle of the cover 3 is set to 5 to 40 °, preferably 20 to 30 °, more preferably 30 °. Thus, if it arrange | positions so that the longitudinal direction of each cover 3 may become a north-south direction, when the cover 3 is made into the open state, the upper surface of the inclined cover 3 will become south. If the inclination angle of the cover 3 is set as described above, sunlight enters the solar cell module 5 installed on the upper surface of the cover 3 at an ideal incident angle, and high power generation efficiency is achieved. can get.

  In order to continuously obtain such high power generation efficiency, not only at the time of work such as water sampling, but also in a time zone where it is not necessary to open the cover, it should be opened at the above inclination angle. When it is desired to keep it, it is preferable to take measures such as covering the opening with a deodorizing sheet or the like.

  The second method of using the cover device of the present invention has an inclined surface 9 in which the upper surface of the cover 3 is linearly inclined in the longitudinal direction of the cover device of the present invention described so far, as shown in FIG. It is how to use what is. In this method of use, the cover device is arranged such that the longitudinal direction of each cover 3 is in the north-south direction, and the lower side (lower side) of the inclined surface 9 is on the south side, and each cover 3 is opened. The angle of the inclined surface 9 with respect to the horizontal direction is set to 5 to 40 °, and preferably 20 to 30 °, even during the closed state and the closed state. Thus, if it arrange | positions so that the longitudinal direction of each cover 3 may become a north-south direction, the inclined surface 9 turns to the south. If the angle of the inclined surface 9 is set as described above, the solar cell installed on the upper surface (inclined surface 9) of the cover 3 while the cover 3 is open or closed. Sunlight enters the module 5 at an ideal incident angle, and high power generation efficiency is obtained.

  In order to make the angle of the inclined surface 9 with respect to the horizontal direction 5 to 40 ° while each cover 3 is opened or closed, for example, the inclined surface with respect to the longitudinal direction of the cover 3 The inclined surface 9 is formed so that the angle of 9 is 40 °, and the inclination angle of the cover 3 (angle θ between the longitudinal direction of the cover 3 and the horizontal direction) while the cover 3 is in an open state is set. It may be set to 35 ° or less.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to these Examples.

  The cover device of the present invention as shown in FIG. 2 is arranged so that the longitudinal direction of each cover is in the north-south direction and the open / close side end is on the north side. Then, during the day of fine weather, each cover was fixed at a different inclination angle of 0 to 90 °, and the amount of power generated by the solar cell module installed on the upper surface of each cover was examined. The result is shown in the graph of FIG. It was. In the graph, the generated power amount when the tilt angle is 30 ° where the generated power amount is the highest is 100%, and the generated power amount when the tilt angle is other than 30 ° is shown as a relative value. From this graph, it can be seen that the closer the tilt angle of the cover is to 30 °, the higher the amount of power generated by the solar cell module. In addition, when the tilt angle is 5 ° or more, the amount of generated power is as high as 90% or more, but when the tilt angle exceeds 40 °, the amount of generated power becomes 98% or less, so the tilt angle exceeds 40 °. There is no point in setting. In particular, when the tilt angle is set to 20 to 30 °, it is most desirable because the amount of generated electric power is as high as 98% or higher.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used as a cover device for a water and sewage facility that can be easily opened and closed and that can efficiently generate power using a solar cell module, and a method for using the cover device.

It is the top view seen from the upper part which shows an example of embodiment of the cover apparatus which concerns on this invention. It is the side view seen from the axial direction of a rotating shaft which shows an example of embodiment of the cover apparatus which concerns on this invention. It is explanatory drawing for demonstrating the moment of force at the time of opening a cover. It is explanatory drawing for demonstrating the suitable support position of the cover by a rotating shaft. It is the side view seen from the axial direction of a rotating shaft which shows an example of embodiment of the cover apparatus which concerns on this invention. It is the top view seen from the upper side which shows another example of embodiment of the cover apparatus which concerns on this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. In another example of embodiment of the cover apparatus which concerns on this invention, it is a perspective view which shows one of the cover covers which adjoin. In another example of embodiment of the cover apparatus which concerns on this invention, it is a perspective view which shows the other of the adjacent cover. In another example of embodiment of the cover apparatus which concerns on this invention, it is a perspective view which shows one of the cover covers which adjoin. In another example of embodiment of the cover apparatus which concerns on this invention, it is a perspective view which shows the other of the adjacent cover. It is a graph which shows the result of an Example.

Explanation of symbols

2: rotating shaft, 3: cover lid, 3a: cover lid, 3b: cover lid, 5: solar cell module, 6: groove, 7a: end portion in width direction of cover lid, 7b: end portion in width direction of cover lid, 9: inclination Surface: 11: Open / close side end, 13: Non-open / close side end, 15: Rubber layer, 17: Handle, 18: Handle, 20: Housing, 21: Rubber seal packing, 23: Cover cover bracket, 30: Water and sewage, 40: Straight line.

Claims (12)

A cover device for covering the upper side of a water and sewage facility,
A plurality of lids on which the upper surface bulges in an arc shape in the longitudinal direction or has an inclined surface that is inclined linearly, and a solar cell module is installed along the upper surface;
A rotating shaft horizontally installed on the housing forming the water and sewage facility,
The plurality of cover covers are arranged adjacent to each other in a state of being rotatably supported by the rotation shaft such that the width direction thereof coincides with the axial direction of the rotation shaft,
Each cover can be opened and closed by pivoting up and down with one end in the longitudinal direction of each cover as an opening and closing side end ,
In the state where each cover is closed, the end in the width direction of each cover overlaps with the end in the width direction of another adjacent cover in the vertical direction, and the rotation shaft is supported in the longitudinal direction of the cover. A cover apparatus having a structure in which a vertical positional relationship in the overlap of the end portions is switched with a position as a boundary . Wherein the distance from the end opposite to the open side end portion in the longitudinal direction of the covering to the center of the rotary shaft and L _1, the water supply and sewerage from said lower surface of each covering in a state in which the respective covering is closed when the distance to the water surface at the highest water level stored in the facility water to make H _1, covering device according to claim 1 and L ₁ and H ₁ is to satisfy the relationship L _{1 <H 1.}   The cover device according to claim 1, wherein each cover has a structure that can be detached from the rotating shaft by an operation of lifting and moving the cover.   When a part of the plurality of covers is removed from the rotation shaft, the other cover is moved to the opening generated by the removal by sliding the other cover along the rotation shaft. The covering apparatus of Claim 3 which has a possible structure.   Between the adjacent cover covers, the solar cell modules installed on the upper surfaces of the cover covers are electrically connected by a cable, and when one of the adjacent cover covers is open and the other is closed However, the covering device according to any one of claims 1 to 4, wherein the cable has a length that can maintain the connection state, or can be expanded and contracted to maintain the connection state.   Between the adjacent cover covers, the solar cell modules installed on the upper surfaces of the cover covers are electrically connected by a cable, and one of the adjacent cover covers is moved in the width direction by the same distance as the width of the cover cover. The cover device according to any one of claims 1 to 4, wherein the cable has a length sufficient to maintain a connected state even when the cable is connected, or can be extended and contracted to maintain the connected state.   The cover device according to any one of claims 1 to 6, wherein the rotating shaft has a structure that can be detached from the housing by an operation of lifting and moving the rotating shaft.   8. The elastic rod according to claim 1, further comprising an extendable tension bar that maintains an inclination angle of the cover at a desired angle by being interposed between the cover and the housing while the cover is in an open state. The covering apparatus as described in any one. In overlap of the ends, on the lower surface of the portion of the end portion comprising the upper and / or the upper portion of the end portion to be lower, one of claims 1 to 8 rubber layer for sealing are formed one The covering device according to item . Wherein the upper surface of the covering, covering device according to any one of claim 1 to 9 provided a spraying pipe for spraying a hall treated water of the water and sewage facilities. Among the cover apparatuses as described in any one of Claims 1-10 , it is a usage method of what the upper surface of the said cover is rising in circular arc shape in the longitudinal direction,
While the cover device is arranged such that the longitudinal direction of each cover is in the north-south direction and the open / close side end is on the north side, and the cover is opened, the inclination angle of the cover is How to use the cover device so that the angle is 5 to 40 °. It is a usage method of the cover apparatus as described in any one of Claims 1-10 in which the upper surface of the said cover has the inclined surface inclined linearly in the longitudinal direction,
The cover device is arranged so that the longitudinal direction of each cover is in the north-south direction, and the lower side of the inclined surface on the inclined surface is on the south side, and the cover device is closed while the cover is open. In the meantime, the method of using the cover device is such that the angle of the inclined surface with respect to the horizontal direction is 5 to 40 °.

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