JP4104684B2 - Cover for treatment tank - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a processing tank cover used for permanently covering the upper part of various processing tanks provided in a water treatment facility for waterworks.
[0002]
[Prior art]
Conventionally, for example, in a water treatment facility for waterworks, after a coagulant is added to raw water and agglomeration / precipitation treatment is performed, this treatment water is treated with ozone, and further treated with activated carbon and sand filtration. These processes are performed in dedicated processing tanks.
[0003]
By the way, as for the processing tank which performs these processes, the thing with the upper part open | released normally is used normally, For this reason, the dust in air | atmosphere penetrate | invades into a processing tank, or sunlight in a processing tank. Due to the large amount of algae generated by direct irradiation, there is a problem that the treatment process of the treated water may be hindered or the quality of the treated water is deteriorated. There were also problems in terms of safety measures.
[0004]
[Problems to be solved by the invention]
In order to deal with these problems, attempts have been made to cover the upper part of the treatment tank with a cover made of metal or synthetic resin, but these treatment tanks are vast, have various shapes, and are inferior. In order to be placed in an installation environment, a cover for a treatment tank that can cope with these conditions has been demanded.
[0005]
The present invention has been made in view of the above requirements, and an object of the present invention is to provide a treatment tank cover that is excellent in strength and has a large degree of freedom in shape, and that can easily perform installation work and maintenance work. .
[0006]
[Means for Solving the Problems]
To achieve the above object, the processing tank for covering of the present invention includes a lid panel of a plurality of identical shape comprising a rectangular synthetic resin molded product, a metal carrier body and the pressing of the metal frame spar body and Futapa panel a processing tank for covering consisting of a member, the lid panel, by disposing a plurality of metal frame spar body at regular intervals, to a metal carrier body parallel disposed has been arcuate, by held between the flat-formed peripheral edge of the lid panel, and between the metal frame spar body and the pressing member with the metal frame body and the pressing member, and fixed in a row, the covering in which the arch-shaped A unit unit is formed, and a plurality of unit units of the cover lid are arranged side by side so as to cover the upper part of the processing tank.
[0007]
In this case, the lid panel can be configured with a synthetic resin molded article having irregularities formed at the center and a flat periphery.
[0008]
In addition, the unit unit of the cover may be configured to be movable on a parallel rail made of grooved steel laid on the upper surface of the peripheral wall of the processing tank by connecting a single unit or a plurality of unit units and arranging a wheel at the lower end. it can.
[0009]
The processing tank cover of the present invention is a processing tank cover comprising a plurality of identically shaped lid panels made of a rectangular synthetic resin molded product , a metal frame main body, a metal frame girder main body, and a cover panel pressing member. peripheral a is, the lid panel, by disposing a plurality of metal frame spar body at regular intervals, to a metal carrier body parallel disposed has been arcuate, which is formed flat lid panel the by clamping between and between the metal frame spar body and the pressing member with the metal frame body and the pressing member, and fixed in a row, to form a basic unit of covering in which the arch shape, the by several juxtaposed units units covering, since it has to cover the upper part of the processing tank, and strength superior, also, the degree of freedom of shape is large, further installation work and coercive It becomes capable of easily work.
[0010]
In particular, a cover unit unit that is lightweight and excellent in strength can be obtained by forming a frame with an extruded product made of aluminum and a cover panel with a synthetic resin molded product made of polycarbonate.
Further, by sharing the arch-shaped metal frame between the unit units of the adjacent cover lids, the manufacturing cost of the cover for the processing tank can be reduced.
Moreover, the upper part of a processing tank can be open | released as needed by arrange | positioning the unit unit of a cover lid individually or by connecting several, and movably arrange | positioning on a processing tank.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a processing tank cover according to the present invention will be described with reference to the drawings.
[0012]
1 to 4 show an embodiment of a processing tank cover according to the present invention.
This treatment tank 10 is provided in a water treatment facility for waterworks. In this embodiment, the treatment tank 10 has a rectangular shape of 4 m × 4.7 m, and is covered with a treatment tank cover 1. Yes.
[0013]
The processing tank cover 1 includes a plurality of lid panels 4 made of a rectangular synthetic resin molded product on an arch-shaped metal frame 2 formed by arranging a plurality of metal frame girders 3 at equal intervals in parallel. Are arranged in a row to form an arch-shaped cover unit unit, and a plurality of unit units of the cover are provided side by side to cover the upper part of the processing tank 10.
[0014]
The metal frame 2 formed in the arch shape and the metal frame girder material 3 arranged on the metal frame 2 at equal intervals are not particularly limited, but in terms of durability against rust and weight reduction. It is preferable to form an extruded product made of aluminum. More specifically, a metal frame main body 21 and a metal frame girder main body 31 made of hollow square material, and a peripheral edge 41 of the lid panel 4 are made of a metal frame. The holding members 22 and 32 that are clamped and fixed between the main body 21 and the metal frame girder main body 31 are respectively configured.
In this case, the radius of curvature R of the metal frame 2 formed in the arch shape can be arbitrarily set according to the strength required for the cover 1 for the treatment tank, for example, the unit unit of the cover is suspended. It is desirable to set it to 0.7 to 1.3 times, more preferably 0.9 to 1.1 times the width L of the processing tank 10 to be passed (in this embodiment, the width L of the processing tank 10 = The radius of curvature R of the metal frame 2 is set to 4.2 m with respect to 4 m.)
In addition, the metal frame 2 and the metal frame girder 3 can be made of an extruded product made of aluminum, a rust-proof steel material, a stainless steel material, or the like.
[0015]
The plurality of lid panels 4 made of a rectangular synthetic resin molded product are not particularly limited, but are preferably composed of a synthetic resin molded product made of polycarbonate in terms of durability and weight reduction. In order to increase the strength, unevenness is formed in the central portion, and the peripheral edge 41 is formed flat, and the peripheral edge 41 is formed between the metal frame main body 21 and the pressing member 22 and the metal frame girder main body. It is clamped between 31 and the pressing member 32 so as to be fixed.
In this case, the lid panel 4 prevents a large amount of algae from being generated when the processing tank 10 is directly irradiated with sunlight, and the manager can visually check the processing tank 10. As described above, it is desirable to use a synthetic resin having a green light-transmitting property that absorbs visible light having a wavelength of 450 nm or less and 600 nm or more.
The size and thickness of the plurality of lid panels 4 made of a rectangular synthetic resin molded product can be arbitrarily set according to the strength required for the cover 1 for the processing tank, workability during assembly, and the like. For example, in the case of a synthetic resin molded product made of polycarbonate having a thickness of 3 mm, it is desirable to form a square of about 1000 mm × 1000 mm or a rectangle of about 800 mm × 1100 mm.
[0016]
Then, the metal frame 2, the metal frame girder 3 and the cover panel 4 configured as described above are assembled into a unit unit of the cover at the factory or construction site. At that time, first, the metal frame main body 21 and After assembling the metal frame girder 31 using the joint metal fitting 12 and the screw 12a, the plurality of lid panels 4 are arranged in a line, and the peripheral edge 41 of the lid panel 4 is connected to the metal frame main body 21 and the pressing member 22. And between the metal frame girder main body 31 and the pressing member 32 and fixed with screws 13.
In addition, each member such as between the metal frame main body 21 or the metal frame girder main body 31 and the peripheral edge 41 of the cover panel 4 or between the pressing members 22 and 32 and the peripheral edge 41 of the cover panel 4 as necessary. A sealing member 14 made of chloroprene rubber foam or the like can be disposed between the two.
[0017]
A plurality of arch-shaped cover unit units formed in this way are juxtaposed and fixed to the upper surface of the peripheral wall 11 of the processing tank 10 using the fixing means 5 so as to cover the entire upper surface of the processing tank 10. To.
In this case, the fixing means 5 of the cover unit unit is not particularly limited, but an anchor 51 is implanted in advance on the upper surface of the peripheral wall 11 of the treatment tank 10 and fixed to the anchor 51. The metal frame girder main body 31 of the unit unit of the cover can be fixed by the bolts and nuts 53.
If necessary, a seal member 54 made of a chloroprene rubber foam or the like can be disposed between each member, such as between the upper surface of the peripheral wall 11 of the processing tank 10 and the base plate 52.
Moreover, in order to cover the opening part of the fixing means 5, the synthetic resin or metal cover member 55 can be provided as needed.
[0018]
In addition, in order to cover the opening part of the both ends of the cover for process tanks assembled in this way, it is desirable to provide the cover member 6 made of synthetic resin or metal.
Further, if necessary, a seal member 15 made of chloroprene rubber foam, silicone rubber or the like can be disposed between the unit units of the adjacent cover lids, that is, in the gap between the metal frame main bodies 21 of the adjacent unit units. .
[0019]
By the way, in the said Example, several metal frame girders 3 are arrange | positioned at equal intervals, the arch-shaped metal frame 2 was formed in parallel, and the some lid panel 4 which consists of a square synthetic resin molded product. Are fixed in a row to form an arch-shaped cover unit unit. However, as in the modification of the processing tank cover of the present invention shown in FIG. The metal frame 2 having a shape can also be used in common, whereby the manufacturing cost of the treatment tank cover 1 can be reduced.
[0020]
Further, when the entire upper surface of the processing tank 10 is covered using a plurality of arch-shaped cover unit units, the plurality of cover unit units are not necessarily fixed to the upper surface of the peripheral wall 11 of the processing tank 10 by using the fixing means 5. It is not necessary to firmly fix the cover lids 1a and 1b formed by singly or connecting a plurality of unit units of the cover as in the modification of the cover for the treatment tank of the present invention shown in FIG. It is also possible to cover the entire upper surface of the processing tank 10 by disposing it on the peripheral wall 11.
In this case, the moving means of the cover lids 1a and 1b is not particularly limited, but an anchor 18 is implanted in advance on the upper surface of the peripheral wall 11 of the treatment tank 10 and is fixed to the anchor 18. On the parallel rail 17 made of steel, the cover lids 1a and 1b having wheels 19 disposed at the lower ends can be configured to move.
Thus, when the cover lids 1a and 1b having the wheels 19 disposed at the lower end are configured to move on the parallel rail 17, the cover covers are divided into two groups, that is, the cover cover 1a that moves the outer rail 17a. The inner rail 17b and the cover lid 1b are arranged so as to be substantially equally divided. Thereby, the cover lids 1a and 1b can be moved to either one side of the processing tank 10, and the upper half of the processing tank 10 can be opened.
[0021]
In any of the above-described embodiments, the cover for a considerably large treatment tank (4 m × 4.7 m) has been described, but the cover panel 4 used for the cover for the treatment tank has a square of about 1000 mm × 1000 mm or 800 mm × Since it is formed in a rectangular rectangle of about 1100 mm, it has versatility and can easily cope with a treatment tank larger or smaller than that of the above embodiment.
[0022]
In the case of a cover for covering the upper part of an extremely small processing tank or water channel (hereinafter simply referred to as “processing tank”), a plurality of metal frame girders 8 as shown in FIGS. A plurality of lid panels 4 made of a rectangular synthetic resin molded product are fixed in a row to a metal frame 7 arranged in parallel at equal intervals to form a cover lid 1c. By this cover lid 1c, The upper part of the small processing tank 10 can be covered.
Also in this case, as in the above embodiment, the metal frame 7, the metal frame girder 8 and the lid panel 4 are assembled at the factory or in the field. At this time, first, the metal frame main body 71 and the metal frame girder are assembled. 81 is assembled using joint fittings (not shown), a plurality of lid panels 4 are arranged in a line, and the peripheral edge 41 of the lid panel 4 is placed between the metal frame main body 71 and the pressing member 72, and The metal frame girder main body 81 and the pressing member 82 are sandwiched and fixed with bolts and nuts 16.
In addition, each member such as between the metal frame main body 71 or the metal frame girder main body 81 and the peripheral edge 41 of the cover panel 4 or between the pressing members 72 and 82 and the peripheral edge 41 of the cover panel 4 as necessary. A sealing member 17 made of a chloroprene rubber foam or the like can be disposed between them.
The cover lid 1 c formed in this way is arranged and fixed on the upper surface of the peripheral wall 11 of the processing tank 10 by using the fixing means 9 so as to cover the entire upper surface of the processing tank 10.
In this case, the fixing means 9 for the cover lid 1c is not particularly limited, but an anchor 91 is implanted in advance on the upper surface of the peripheral wall 11 of the treatment tank 10, and the metal frame of the cover cover 1c is attached to the anchor 91. The girder body 81 can be configured to be fixed.
If necessary, a seal member 92 made of chloroprene rubber foam or the like can be disposed between each member, such as between the upper surface of the peripheral wall 11 of the processing tank 10 and the metal frame girder main body 81.
[0023]
【The invention's effect】
According to the cover for a treatment tank of the present invention, a treatment tank comprising a plurality of identically shaped lid panels made of a rectangular synthetic resin molded product , a metal frame body, a metal frame girder body, and a lid panel pressing member. The cover panel is formed flat on the arch-shaped metal frame main body arranged in parallel by arranging a plurality of metal frame girder main bodies at equal intervals. by sandwiching the the periphery between and between the metal frame spar body and the pressing member with the metal frame body and the pressing member, and fixed in a row, to form a basic unit of covering in which the arch-shaped by several juxtaposed basic units of said cover lid, since it has to cover the upper part of the processing tank, and strength superior, also, the degree of freedom of shape is large, further installation work The things you can do fine maintenance work easily.
[0024]
In addition, by forming the lid panel with a synthetic resin molded product having irregularities in the center and a flat periphery thereof, it is possible to obtain a cover unit unit that is lightweight and excellent in strength, As a result, installation work and the like can be performed more easily.
[0025]
In addition, it is necessary by connecting the unit units of the cover individually or by connecting multiple units, disposing wheels at the lower end, and moving on the parallel rail made of grooved steel laid on the upper surface of the peripheral wall of the treatment tank. Accordingly, the upper part of the processing tank can be opened, and the maintenance work of the processing tank can be easily performed.
[Brief description of the drawings]
1A and 1B show an embodiment of a processing tank cover according to the present invention, in which FIG. 1A is a plan view and FIG. 1B is a sectional view taken along line AA in FIG.
2A is a cross-sectional view taken along line BB in FIG. 1A, and FIG. 2B is an enlarged view of a portion D in FIG.
FIG. 3 is an enlarged view of a portion C in FIG.
4A and 4B show unit units of the processing tank cover according to the present invention, FIG. 4A is a plan view, FIG. 4B is a side view, FIG. 4C is an enlarged view of a portion E in FIG. It is sectional drawing of the FF line of c).
5A and 5B show a modification of the processing tank cover according to the present invention, in which FIG. 5A is a cross-sectional view corresponding to FIG. 2A, and FIG. 5B is an enlarged view of a portion G in FIG.
FIG. 6 is an enlarged view corresponding to FIG. 3 of a modification of the processing tank cover according to the present invention.
FIG. 7 shows another example of use of the lid panel, (a) is a plan view, (b) a sectional view taken along the line H-H in (a), and (C) a sectional view taken along the line I-I in (a). It is.
FIG. 8 is an enlarged view of a portion J in FIG. 7 (b).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cover for processing tank 2 Metal frame 21 Metal frame main body 22 Holding member 3 Metal frame girder material 31 Metal frame girder main body 32 Holding member 4 Lid panel 41 Perimeter 5 Fixing means 10 Processing tank 11 Peripheral wall 17 Parallel rail 19 Wheel

Claims (3)

A plurality of lid panels (4) having the same shape made of a rectangular synthetic resin molded product, a metal frame main body (21), a metal frame girder main body (31), and pressing members (22, 32) of the lid panel (4) The lid for the processing tank (1) is formed by arranging a plurality of metal frame girder bodies (31) at equal intervals in parallel. the metal carrier body arched (2 1), and between the metal frame spars between the metal carrier body flat-formed peripheral edge (41) of the lid panel (4) (21) and the support members (22) By sandwiching between the main body (31) and the pressing member (32), it is fixed in a row to form an arch-shaped unit unit of the cover, and by arranging a plurality of unit units of the cover , Above the treatment tank Covering a treatment tank, characterized in that the Migihitsuji.   The cover for a processing tank according to claim 1, wherein the lid panel (4) is formed of a synthetic resin molded product having irregularities formed at the center and a peripheral edge (41) formed flat.   Parallel rails (17) made of grooved steel laid on the upper surface of the peripheral wall (11) of the treatment tank (10) with the unit unit of the cover unit being singly or connected, the wheel (19) being disposed at the lower end The processing tank cover according to claim 1 or 2, wherein the top is movable.

Images