JP2007196096A - Water treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an effective technology which improves the stabilization of a piling up state in work for piling up upper tanks or lower tanks each composing a tank body of a water treatment apparatus, and improves the workability of the piling up work. <P>SOLUTION: A corrugated area 121 with a shape formed by connecting a first corrugated part 122 and a second corrugated part 123 is installed at each corner 120b of the lower tank 120 composing the water treatment apparatus. The upper end positions of the corrugated parts which are point-symmetric with respect to the center point P of the lower tank 120 are different with respect to the height direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water treatment apparatus that houses a water treatment mechanism for treating water to be treated in a tank body, and more particularly, is effective for facilitating storage and transportation of an upper tank or a lower tank constituting the tank body. It is about technology.

Conventionally, various configurations for facilitating storage and transportation of an upper tank or a lower tank before joining have been proposed for a flange-joined purification tank formed by joining flange surfaces of an upper tank and a lower tank. For example, the following Patent Document 1 shows the possibility of stacking a plurality of tanks without using a spacer or the like by devising the shape of the corrugated portion formed on the side surface of the upper tank or the lower tank of the septic tank. ing.
Japanese Utility Model Publication No. 5-13596

By the way, when stacking the upper tank or the lower tank constituting this kind of septic tank during storage or transportation, there is a demand for improving the stability of the stacked state and improving workability regarding the stacking work. However, although the septic tank described in Patent Document 1 certainly has the possibility of stacking a plurality of tanks without using spacers or the like, it is not configured to improve balance at the time of stacking, and the stacked state is It is difficult to stabilize.
Therefore, the present invention has been made in view of the above points, and in the stacking work of the upper tank or the lower tank constituting the tank body of the water treatment device, the stability of the stacked state is improved and the stacking work is related to the stacking work. It is an object to provide a technique effective in improving workability.

  The present invention is configured to solve the above problems. In addition, this invention is a technique which can be applied to the water treatment apparatus which accommodates the water treatment mechanism which processes various to-be-processed water including the domestic waste water discharged | emitted from a general household etc. in a tank main body.

(First invention of the present invention)
1st invention of this invention which solves the said subject is a water treatment apparatus as described in Claim 1. FIG. The water treatment device according to claim 1 is configured as a device that houses a water treatment mechanism for treating the water to be treated in the tank body. The “water treatment mechanism” here is a mechanism for treating various types of water to be treated. Typically, a solid-liquid separation processing unit, a biological processing unit, a storage processing unit, a transfer processing unit, a disinfection processing unit. Etc. are appropriately combined. The tank body is composed of a bowl-shaped upper tank and lower tank whose plan view is substantially rectangular, and has a flange-joined configuration formed by overlapping and bonding the bonding flange surfaces of the upper tank and the lower tank. It has become.

  In the tank main body of the present invention, at least one of the upper tank and the lower tank includes a plurality of corrugated portions whose side wall surfaces are recessed toward the inner peripheral side. The corrugated shape formed on the side wall surface of the tank by these corrugated portions constitutes a so-called “corrugated shape” reinforcing structure. In particular, in the present invention, the plurality of corrugated portions includes at least one set of corrugated portions that are point-symmetric with respect to a central point where the long side center line and the short side center line intersect in the corner region of the tank. It is included. The long side center line is a center line related to the long side of the tank, and is defined as a line connecting the long side centers facing each other. The short side center line is a center line related to the short side of the tank and is defined as a line connecting the short side centers facing each other.

  Moreover, in this invention, it is set as the structure from which the position of the upper end part of the corrugated parts which are mutually point-symmetrical differs regarding a height direction. Here, the “corner region” is a portion called a “corner radius (chamfer radius)” that is chamfered at the four corners of each tank, and is substantially in plan view as in the present invention. In the upper tank and the lower tank which are rectangular, this corner area is present in a total of four places in each tank. In the present invention, it is possible to adopt a configuration in which corrugated portions are provided at all of these four corner areas, or they are diagonal to each other among the four corner areas. A configuration in which a corrugated portion is provided only in two corner regions can also be employed.

According to such a configuration of the water treatment device according to claim 1, in the stacking operation of the upper tank or the lower tank forming the tank body, the stability of the stacked state is improved and the workability improvement regarding the stacking operation is improved. It becomes possible to plan.
Specifically, in the present invention, since the positions of the upper end portions of the corrugated portions that are point-symmetric with each other are different in the height direction, one tank is rotated 180 degrees with respect to the other tank. By stacking in a state, the corrugated portions of point symmetry overlap each other, and due to the difference in the position of the upper end portions of the overlapping corrugated portions, there is a space (space) between the lower tank and the upper tank in the stacked state. Will be formed. Therefore, without using a spacer or the like, it is possible to efficiently stack a plurality of tanks up and down, and to stabilize the stacked state, while reducing labor and cost. Moreover, the separation work after the stacking can be easily performed.
Further, in the present invention, the corrugated portion is provided in the corner region of the upper tank or the lower tank, but this corner region is a region with less deformation than the long side or short side wall surface. . Therefore, according to the present invention, even when an external force is applied to the tank during the operation of stacking a plurality of upper tanks or lower tanks up and down, the deformation due to the external force causes the corrugated portion of the lower tank. The position of the corrugated part of the upper tank can be prevented from shifting, and the corrugated part of the upper tank can be securely fitted into the corrugated part of the lower tank. This facilitates the work of stacking a plurality of upper tanks or lower tanks up and down.

(Second invention of the present invention)
The second invention of the present invention that solves the above-mentioned problems is a water treatment apparatus as described in claim 2.
In this water treatment device according to claim 2, at least one of the upper tank and the lower tank according to claim 1 is at least one pair of corrugated portions that are point-symmetric with respect to the center point in the corner area of the tank. In addition, the upper end portion includes a corrugated portion that substantially matches the position of the joint flange surface in the height direction.
According to such a configuration, by extending the position of the upper end portion of a part of the corrugated portion to the joining flange surface, a structure in which the corrugated portion and the joining flange are connected to each other is realized. Compared to the case where the position is located below the joining flange surface, a high reinforcing effect of the entire tank is obtained.

(Third invention of the present invention)
A third invention of the present invention that solves the above-mentioned problems is a water treatment apparatus as described in claim 3.
In this water treatment apparatus according to claim 3, at least one of the upper tank and the lower tank according to claim 1 or 2 is attached to an interior member installed inside the tank in a plurality of corrugated portions. It is set as the structure containing the corrugated part used as a seat. The corrugated part used as a mounting seat for the interior member may be a corrugated part installed in a corner area of the tank, or a corrugated part installed in an area other than the corner area of the tank. Good. The “interior member” here includes various members and parts installed in the tank. For example, a member for fixing or mounting such as equipment, piping, and instruments may be used as the interior member. it can.
According to such a configuration, the corrugated portion involved in the stacking of the upper tank or the lower tank forming the tank body can be used for attaching the interior member in the tank.

(Fourth invention of the present invention)
A fourth invention of the present invention that solves the above-mentioned problems is a water treatment apparatus as described in claim 4.
In this water treatment device according to claim 4, the tank body according to any one of claims 1 to 3 includes at least a partition plate and an inserted portion. A partition plate is comprised as a member extended along the short side direction of the said lower tank so that the inside of a lower tank may be divided. The inserted portion is configured as a portion in which the distance between adjacent corrugated regions on each side wall surface facing each other is set based on the thickness of the partition plate, and the partition plate can be inserted into the inserted portion.
According to such a structure, it becomes possible to use the corrugated part involved in the stacking of the upper tank or the lower tank forming the tank body as a guide for inserting the partition plate.

(Fifth invention of the present invention)
A fifth invention of the present invention that solves the above-described problems is a water treatment apparatus as described in claim 5.
In this water treatment device according to claim 5, the inserted portion according to claim 4 has a configuration in which the interval between adjacent corrugated portions substantially matches the thickness of the partition plate, whereby the inserted portion is inserted. It is set as the structure by which the operation | movement to the long side direction of the partition plate of the installed state is controlled.
According to such a configuration, the corrugated portion involved in the stacking of the upper tank or the lower tank forming the tank body can be used as a guide for inserting the partition plate, and further used for fixing the partition plate.

  As described above, according to the present invention, in at least one of the upper tank and the lower tank constituting the tank body of the water treatment apparatus, the long side center line and the short side center line intersect at the corner area of the tank. By providing at least one pair of corrugated portions that are point-symmetric with respect to the center point, and by configuring the upper end portions of the corrugated portions that are point-symmetric with respect to each other in the height direction, In addition to improving the stability of the stacking condition when stacking, it is possible to improve workability related to stacking work.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, this Embodiment demonstrates the structure of the water treatment apparatus which processes the waste_water | drain discharged | emitted from a general household or a factory as to-be-processed water.

  FIG. 1 shows an appearance of a water treatment apparatus 100 as an embodiment of the “water treatment apparatus” in the present invention. This water treatment apparatus 100 is also referred to as a “septic tank” or “drainage treatment tank”. As shown in FIG. 1, the water treatment apparatus 100 of the present embodiment has a configuration in which a water treatment mechanism 102 is accommodated inside a tank body 101 when viewed generally. The water treatment mechanism 102 has a configuration for performing various treatments on the water to be treated. Although not particularly illustrated, the solid-liquid separation treatment unit, the biological treatment unit, the storage treatment unit, the transfer treatment unit, the disinfection treatment unit, and the like. Are appropriately combined. This water treatment mechanism 102 corresponds to the “water treatment mechanism” in the present invention.

The tank body 101 as the “tank body” in the present invention includes an upper tank (also referred to as “upper tank”) 110 and a lower tank (also referred to as “lower tank”) 120. The upper tank 110 corresponds to the “upper tank” in the present invention, and the lower tank 120 corresponds to the “lower tank” in the present invention.
The upper tank 110 is a bowl-shaped tank having a substantially rectangular shape in plan view, and is a tank disposed on the upper part of the lower tank 120. The upper tank 110 includes at least an inflow portion 103, a discharge portion 104, and a manhole 105. On the other hand, the lower tank 120 is a bowl-shaped tank having a substantially rectangular shape in plan view, and is a tank disposed in the lower part of the upper tank 110. By joining the joint flange surface of the joint flange 110a of the upper tank 110 and the joint flange surface of the joint flange 120a of the lower tank 120 in a state where they are overlapped with each other, the flange-joined tank body 101 is formed.
Moreover, in this Embodiment, the corrugated area | region 111 where the side wall surface was dented to the inner peripheral side is provided in each corner part 110b of the upper tank 110 which planar view becomes substantially rectangular shape. Similarly, corrugated regions 121 whose side wall surfaces are recessed toward the inner peripheral side are provided at four corner portions 120b of the lower tank 120 that is substantially rectangular in plan view. The corner portion 110b and the corner portion 120b are chamfered shapes at the four corners of each tank, and are so-called “corner R (chamfer radius)”. Equivalent to. Although the details will be described later, the corrugated shape formed on the side wall surface by the corrugated regions 111 and 121 constitutes a so-called “corrugated shape” reinforcing structure.

(First embodiment)
Here, regarding the structure of the lower tank of the tank main body 101, the specific structure of the lower tank 120 of 1st Embodiment is demonstrated, referring FIG.2 and FIG.3. FIG. 2 shows a side view of the lower tank 120 of the first embodiment, and FIG. 3 shows a plan view of the lower tank 120 of the first embodiment.

  As shown in FIGS. 2 and 3, each corrugated region 121 has a shape in which a first corrugated portion 122 and a second corrugated portion 123 are connected. The first corrugated portion 122 extends longitudinally in the height direction (vertical direction in FIG. 2), and the corrugated portion whose upper end portion 122a substantially matches the position of the joining flange surface of the joining flange 120a. Composed. On the other hand, the second corrugated portion 123 similarly extends in the longitudinal direction in the height direction (vertical direction in FIG. 2), and the position of the upper end portion 123a is below the joining flange surface of the joining flange 120a (“ It is configured as a corrugated part located in the “low place”. That is, the first corrugated portion 122 and the second corrugated portion 123 are configured such that the position of the upper end portion is different in the height direction (vertical direction). Further, the first corrugated portion 122 and the second corrugated portion 123 are configured to have substantially the same depth of depression toward the inner peripheral side. The first corrugated portion 122 and the second corrugated portion 123 constitute the “corrugated portion” in the present invention.

  In particular, in the present embodiment, with respect to the arrangement positions of the first corrugated portion 122 and the second corrugated portion 123 on the side wall surface of the lower tank 120, as shown by the arrows in FIG. There are four sets of corrugated regions that are point-symmetric with respect to P, and in each set, the first corrugated portion 122 and the second corrugated portion 123 are combined with each other. Here, the center point P is configured as a point where the long side center line L1 of the lower tank 120 and the short side center line L2 of the lower tank 120 intersect. The long side center line L1 is a center line related to the long side of the lower tank 120, and is defined as a line connecting the long side centers facing each other. The short side center line L2 is a center line related to the short side of the lower tank 120 and is defined as a line connecting the short side centers facing each other. Moreover, in the present embodiment, the positions of the upper end portions 122a and 123a of the corrugated region combinations that are point-symmetric with respect to the center point P are different in the height direction (vertical direction). The long side center line L1, the short side center line L2, and the center point P here correspond to the “long side center line”, “short side center line”, and “center point” in the present invention, respectively.

  Next, a case where a plurality of the lower tanks 120 having such a configuration are stacked up and down during storage or transportation will be described with reference to FIGS. 4 and 5. Here, FIG. 4 shows a state in which the upper lower tank 120 indicated by a two-dot chain line is stacked from above the lower lower tank 120 indicated by a solid line. FIG. 5 shows a cross-sectional structure taken along line AA in FIG. 4 in a state where the lower tank 120 is stacked.

  When stacking at least two lower tanks 120 up and down, the lower tank 120 on one side is rotated 180 degrees around the center point (center point P in FIG. 3) with respect to the lower tank 120 on the other side. 4, the upper lower tank 120 is inserted into the lower lower tank 120. At this time, the position of the first corrugated portion 122 of the lower lower tank 120 matches the position of the second corrugated section 123 of the upper lower tank 120, and the position of the second corrugated section 123 of the lower lower tank 120 And the position of the 1st corrugated part 122 of the upper lower tank 120 corresponds. In a state where the two lower tanks 120 are stacked one above the other, the corrugated area 121 of the upper lower tank 120 is fitted into the corrugated area 121 of the lower lower tank 120. Specifically, the second corrugated portion 123 of the upper lower tub 120 is fitted into the first corrugated portion 122 of the lower lower tub 120, and the second corrugated portion 123 of the lower lower tub 120 is fitted. The first corrugated portion 122 of the upper lower tank 120 is fitted. That is, in the present embodiment, the upper lower tank 120 and the lower lower tank 120 are engaged with each other by a total of eight corrugated portions.

  At this time, in a state where at least two lower tanks 120 are stacked one above the other, as shown in FIG. 5, the upper tank 122 of the upper lower tank 120 has the upper end 122 a of the first corrugated part 122 of the lower lower tank 120. The upper end portion 123a of the two corrugated portion 123 is placed. That is, depending on the step shape of the upper end portion 122a of the first corrugated portion 122 and the upper end portion 123a of the second corrugated portion 123, there is a predetermined gap between the lower lower tank 120 and the upper lower tank 120 that are stacked together. A space 124 having a height is formed. By forming this space 124, it is possible to efficiently stack the plurality of lower tubs 120 vertically without using a spacer or the like, and to stabilize the stacked state. In addition, the separation work once stacked can be easily performed. In the present embodiment, the upper end portion 123a of the second corrugated portion 123 is used for fixing or attaching an interior member installed in the tank, for example, equipment, piping, and instruments mounted in the tank. It can also be configured as a mounting seat.

  Moreover, in this Embodiment, although it has set it as the structure which provides the corrugated area | region 121 (the 1st corrugated part 122 and the 2nd corrugated part 123) of the lower tank 120 in each corner part 120b, each corner part 120b has a long side or short piece. The region is less deformed than the side wall surface on the side. Therefore, according to the present embodiment, even when an external force is applied to each of the lower tanks 120 in the operation of stacking at least two lower tanks 120 up and down, the lower lower tank 120 is deformed by the external force. The position of the corrugated region 121 of the upper lower tub 120 can be prevented from shifting with respect to the corrugated region 121 of the upper lower tub 120, and the corrugated region 121 of the upper lower tub 120 can be securely placed in the corrugated region 121 of the lower lower tub 120. It can be inserted. This facilitates the work of stacking at least two lower tanks 120 up and down.

  Moreover, in the structure of the lower tank 120 of this Embodiment, since the position of the upper end part 122a of the 1st corrugated part 122 is a structure which corresponds in general with the position of the joining flange surface of the joining flange 120a, A structure in which the joining flange 120a is connected is realized. Such a structure is particularly effective for obtaining a high reinforcing effect (for example, an effect of improving torsional strength) of the entire lower tank 120.

  Moreover, in the present embodiment, as shown in FIG. 1, the corrugated area 121 in the lower tank 120 and the corrugated area 111 in the upper tank 110 abut (join) each other on the joining flange surfaces of the joining flanges 110a and 120a. Is configured to do. According to such a configuration, the structure in which the corrugated area 121 of the lower tank 120 and the corrugated area 111 of the upper tank 110 are connected to each other provides a high reinforcing effect not only for the lower tank 120 but also for the entire tank body 101.

When another lower tank 120 is stacked with at least two lower tanks 120 stacked vertically, the other lower tank 120 is placed at the center point of the uppermost lower tank 120 that is already stacked. After rotating 180 degrees around, it is inserted so as to fit into the uppermost lower tank 120. Furthermore, when stacking another lower tank 120, it can carry out by the same procedure.
Further, the method of stacking at least two upper tanks 110 up and down is possible by the same method as the method of stacking the lower tanks 120 as described above.

(Second Embodiment)
Regarding the structure of the lower tank of the tank main body 101, the specific structure of the lower tank 220 of 2nd Embodiment is demonstrated, referring FIG.6 and FIG.7. FIG. 6 shows a side view of the lower tank 220 of the second embodiment, and FIG. 7 shows a plan view of the lower tank 220 of the second embodiment.
In the second embodiment, the corrugated region 221 is provided only in the two corner portions 120b that are diagonal of the four corner portions 120b of the lower tank 220 that is substantially rectangular in plan view. . Each corrugated region 221 is a portion where the side wall surface of the lower tank 220 is recessed toward the inner peripheral side, similarly to the corrugated region 121 of the first embodiment, and the first corrugated portion 222 and the second corrugated portion 223 are connected. Has a shape.

  The first corrugated portion 222 extends in the longitudinal direction in the height direction (vertical direction in FIG. 6), and the position of the upper end portion 222a is joined in the same manner as the first corrugated portion 122 of the first embodiment. The corrugated portion substantially coincides with the position of the joining flange surface of the flange 220a. On the other hand, the second corrugated portion 223 extends in the longitudinal direction in the height direction (vertical direction in FIG. 6), and the position of the upper end portion 223a is the same as the second corrugated portion 123 of the first embodiment. Is configured as a corrugated portion located below (also referred to as “low place”) below the joint flange surface of the joint flange 220a. That is, the first corrugated portion 222 and the second corrugated portion 223 have different configurations in the position of the upper end portion in the height direction (vertical direction). Further, the first corrugated portion 222 and the second corrugated portion 223 are configured to have substantially the same depth of dent toward the inner peripheral side. The first corrugated portion 222 and the second corrugated portion 223 constitute the “corrugated portion” in the present invention.

  In particular, in the present embodiment, with respect to the arrangement positions of the first corrugated part 222 and the second corrugated part 223 on the side wall surface of the lower tank 220, as shown by the arrows in FIG. There are two sets of corrugated regions that are point-symmetric with respect to P, and in each set, the first corrugated portion 222 and the second corrugated portion 223 are combined with each other. Moreover, in the present embodiment, the positions of the upper end portions 222a and 223a of the combinations of corrugated regions that are point-symmetric with respect to the center point P are different in the height direction (vertical direction).

  Next, a case where a plurality of the lower tanks 220 having such a configuration are stacked up and down during storage or transportation will be described with reference to FIGS. 8 and 9. Here, FIG. 8 shows a state in which the upper lower tank 220 indicated by a two-dot chain line is stacked from above the lower lower tank 220 indicated by a solid line, and FIG. 9 shows the lower tank 220 stacked. 8 shows a cross-sectional structure taken along line BB in FIG.

  When stacking at least two lower tanks 220 vertically, the lower tank 220 on one side is rotated 180 degrees around the center point (center point P in FIG. 7) with respect to the lower tank 220 on the other side. As shown in FIG. 8, the upper lower tank 220 is inserted into the lower lower tank 220. At this time, the position of the first corrugated portion 222 of the lower lower tank 220 matches the position of the second corrugated section 223 of the upper lower tank 220, and the position of the second corrugated section 223 of the lower lower tank 220 And the position of the 1st corrugated part 222 of the upper lower tank 220 corresponds. Then, in a state where the two lower tanks 220 are stacked up and down, the corrugated part 221 of the upper lower tank 220 is fitted into the corrugated part 221 of the lower lower tank 220. Specifically, the second corrugated part 223 of the upper lower tank 220 is fitted into the first corrugated part 222 of the lower lower tank 220, and the second corrugated part 223 of the lower lower tank 220 is engaged. The first corrugated portion 222 of the upper lower tank 220 is fitted. That is, in the present embodiment, the upper lower tank 220 and the lower lower tank 220 are engaged with each other by a total of four corrugated portions.

  At this time, in a state where at least two lower tanks 120 are stacked one above the other, as shown in FIG. 9, the upper bottom tank 220 of the upper lower tank 220 has the second upper tank 222 a with respect to the upper end portion 222 a of the first corrugated part 222. The upper end portion 223a of the two corrugated portion 223 is placed. That is, depending on the step shape between the upper end portion 222a of the first corrugated portion 222 and the upper end portion 223a of the second corrugated portion 223, there is a predetermined gap between the lower lower tank 220 and the upper lower tank 220 that are stacked together. A space (space) 224 having a height is formed. By forming the space 224, it is possible to efficiently stack the plurality of lower tubs 220 up and down without using a spacer or the like, and to stabilize the stacked state. In addition, the separation work once stacked can be easily performed.

Further, in the present embodiment, the corrugated region 221 (the first corrugated portion 222 and the second corrugated portion 223) of the lower tank 220 is configured to be provided in two corner portions 220b. The region is less deformed than the short piece. Therefore, according to the present embodiment, even when an external force is applied to each of the lower tanks 220 in the operation of stacking at least two lower tanks 220 up and down, the lower lower tank 220 is deformed by the external force. The position of the corrugated portion 221 of the upper lower tank 220 can be prevented from shifting with respect to the corrugated portion 221, and the corrugated portion 221 of the upper lower tank 220 can be securely connected to the corrugated portion 221 of the lower lower tank 220. It can be inserted. This facilitates the work of stacking at least two lower tanks 220 up and down.
In addition, according to the present embodiment, by providing the corrugated region 221 only at the two corner portions 120b that are diagonal out of the four corner portions 120b of the lower tank 220, the installation of the corrugated region 221 is suppressed. A simple configuration can be realized.

(Third embodiment)
Further, in place of the configuration of the water treatment apparatus 100 shown in FIG. 1, a configuration of a water treatment apparatus 300 that houses the water treatment mechanism 102 inside the tank body 301 as shown in FIG. 10 can be used. FIG. 10 shows the appearance of a water treatment apparatus 300 that is an embodiment of the “water treatment apparatus” in the present invention. In FIG. 10, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

  As shown in FIG. 10, a tank body 301 that is a “tank body” in the present invention includes an upper tank 310 that is an “upper tank” in the present invention, and a lower tank 320 that is a “lower tank” in the present invention. The upper tank 310 is configured to further include a plurality of corrugated portions 115 on the side wall surface on the long side in the configuration of the upper tank 110 of the first embodiment. On the other hand, the lower tub 320 is configured to further include a plurality of third corrugated portions 125 and fourth corrugated portions 126 on the side wall surface on the long side in the configuration of the upper tub 120 of the first embodiment.

  Here, a specific configuration of the lower tank 320 of the tank body 301 will be described with reference to FIGS. 11 and 12. FIG. 11 shows a side view of the lower tank 320 of the third embodiment, and FIG. 12 shows a plan view of the lower tank 320 of the third embodiment.

  As shown in FIGS. 11 and 12, the third corrugated portion 125 extends longitudinally in the height direction (vertical direction in FIG. 11), and the position of the upper end portion 125a is the joining flange of the joining flange 120a. It is configured as a corrugated part that roughly matches the position of the surface. On the other hand, the fourth corrugated portion 126 similarly extends in the longitudinal direction in the height direction (vertical direction in FIG. 11), and the position of the upper end portion 126a is below the joining flange surface of the joining flange 120a. And it is comprised as a corrugated part located in the same height as the upper end part 123a of the 2nd corrugated part 123. FIG. Further, the third corrugated portion 125 and the fourth corrugated portion 126 are configured to have substantially the same depth of depression toward the inner peripheral side. The third corrugated portion 125 and the fourth corrugated portion 126 constitute the “corrugated portion” in the present invention.

  As for the arrangement positions of the third corrugated portion 125 and the fourth corrugated portion 126, as shown by the arrows in FIG. 12, each of the corrugated portions has four sets of corrugated regions that are symmetrical with respect to the center point P. In the set, the third corrugated portion 125 and the fourth corrugated portion 126 are combined with each other. Moreover, in the present embodiment, the positions of the upper end portions 125a and 126a of the combinations of corrugated regions that are point-symmetric with respect to the center point P are different in the height direction (vertical direction).

  Next, a case where a plurality of the lower tanks 320 having such a configuration are stacked up and down during storage or transportation will be described with reference to FIGS. 13 and 14. Here, FIG. 13 shows a state in which the upper lower tank 320 indicated by a two-dot chain line is stacked from above the lower lower tank 320 indicated by a solid line. FIG. 14 shows a cross-sectional structure taken along the line CC in FIG. 13 in a state where the lower tank 320 is stacked.

  When stacking at least two lower tanks 320 vertically, the lower tank 320 on one side is rotated 180 degrees around the center point (center point P in FIG. 12) with respect to the lower tank 320 on the other side. 13, the upper lower tank 320 is inserted so as to be fitted into the lower lower tank 320. At this time, in a state where the two lower tanks 320 are vertically stacked, the second corrugated part 123 of the upper lower tank 320 is fitted into the first corrugated part 122 of the lower lower tank 320, and the lower The first corrugated part 122 of the upper lower tank 320 is fitted into the second corrugated part 123 of the lower tank 320. Further, the fourth corrugated portion 126 of the upper lower tank 320 is fitted into the third corrugated portion 125 of the lower lower tank 320, and the upper side of the fourth corrugated portion 126 of the lower lower tank 320 is fitted. The third corrugated portion 125 of the lower tank 320 is fitted. That is, in the present embodiment, the upper lower tank 320 and the lower lower tank 320 are engaged with each other by a total of 16 corrugated portions.

  At this time, in a state where at least two lower tanks 320 are stacked one above the other, as shown in FIG. 14, the upper part of the lower tank 320 on the upper side with respect to the upper end 125a of the third corrugated part 125 of the lower tank 320 on the lower side. The upper end portion 126a of the four corrugated portion 126 is placed. That is, depending on the shape of the step between the upper end portion 125a of the third corrugated portion 125 and the upper end portion 126a of the fourth corrugated portion 126, there is a predetermined gap between the lower lower tank 320 and the upper lower tank 320 that are stacked together. A space 124a having a height is formed. Further, as described above, the lower lower tank 320 and the upper lower tank 320 that are stacked on each other are formed by the step shape of the upper end part 122a of the first corrugated part 122 and the upper end part 123a of the second corrugated part 123. A space 124 having a predetermined height is formed between them (see FIG. 5). By forming these spaces 124 and 124a, it is possible to efficiently stack the plurality of lower tanks 320 vertically without using a spacer or the like, and to stabilize the stacked state. In addition, the separation work once stacked can be easily performed. In the present embodiment, the upper end portion 126a of the fourth corrugated portion 126 is used for fixing or attaching an interior member installed in the tank, for example, equipment, piping, and instruments mounted in the tank. It can also be configured as a mounting seat.

  According to the configuration of the lower tank 320 of the present embodiment, by providing the corrugated regions 121 (the first corrugated portion 122 and the second corrugated portion 123) in each corner portion 120b, the stacking operation is facilitated and the mutual operations are performed. By increasing the number of corrugated portions that fit together, it becomes possible to further improve the stability related to the stacking.

  Moreover, in this Embodiment, it is preferable to use the above-mentioned corrugated shape regarding attachment of the partition plate which divides the inside of a tank. Here, a specific configuration for attaching the partition plate 130 in the lower tank 320 of the third embodiment will be described with reference to FIGS. 15 to 17. The partition plate 130 corresponds to a “partition plate” in the present invention.

  As shown in FIGS. 15 and 16, in this embodiment, an inserted portion 127 for the partition plate 130 is provided between the third corrugated portion 125 and the fourth corrugated portion 126 on the side wall surface of the lower tank 320. The interval a of the inserted portion 127 is configured to be substantially constant in the vertical direction, and the interval a of the inserted portion 127 is a portion related to the long side direction of the partition plate 130 (folded portion at the upper end and the lower end). It is configured so as to substantially match or slightly increase the thickness b. This inserted portion 127 corresponds to the “inserted portion” in the present invention.

  In such a configuration, when the partition plate 130 is attached to the lower tank 320, the partition plate 130 is inserted from above the inserted portion 127 as indicated by an arrow in FIG. At this time, the inserted portion 127 exhibits a function as a partition plate guiding means for smoothly guiding the partition plate 130 downward of the lower tank 320. And in the state which inserted the partition plate 130 to the desired installation position, while the lower end of the partition plate 130 contacts the bottom part of the to-be-inserted part 127, while the operation | movement of the insertion direction of the partition plate 130 is controlled, The movement operation is restricted. Thus, according to the present embodiment, the corrugated portions 125 and 126 that are involved in the stacking of the lower tub 320 are further set by appropriately setting the interval a of the inserted portions 127 based on the shape of the partition plate 130. It becomes possible to use as a part for a partition plate guide, a partition plate stopper, and a part for fixing a partition plate.

  In the embodiment shown in FIGS. 15 and 16, an inclined configuration (see FIG. 17) in which the upper interval c among the intervals of the inserted portion 127 is expanded more than the lower interval a can be used. . According to such a configuration, the corrugated portions 125 and 126 that are involved in the stacking of the lower tank 320 can be used as a partition plate guide, a partition plate stopper, and a partition plate fixing portion. By widening the gap on the insertion port side of the inserted portion 127, the partition plate 130 can be smoothly guided to the inserted portion 127, and in the inserted portion 127 for bonding the partition plate 130 in advance. It is possible to suppress the applied adhesive from being scraped when the partition plate 130 is inserted.

(Fourth embodiment)
Moreover, the structure of the lower tank 420 as shown in FIG. 18 can also be employ | adopted as a modification of the lower tank 120 of above-mentioned 1st Embodiment. FIG. 18 is a plan view of the lower tank 420 according to the fourth embodiment.
In the lower tank 420 shown in FIG. 18, only one of the second corrugated portions 123 of the first corrugated portion 122 is provided in each corner portion 120b. Even with such a configuration, as in the case of the lower tank 120 of the first embodiment, it is possible to facilitate the work of stacking at least two lower tanks 420 up and down. Moreover, according to this structure, simplification regarding the structure of a lower tank is achieved by suppressing the installation number of the corrugated part provided in the corner part 120b.

(Fifth embodiment)
Further, as a modification of the lower tank 220 of the second embodiment described above, a configuration of the lower tank 520 as shown in FIG. 19 can be adopted. FIG. 19 shows a plan view of the lower tank 520 of the fifth embodiment.
In the lower tank 520 shown in FIG. 19, only one of the second corrugated portions 223 of the first corrugated portion 222 is provided in each corner portion 220b. Even with such a configuration, as in the case of the lower tank 220 of the second embodiment, it is possible to facilitate the work of stacking at least two lower tanks 520 up and down. Moreover, according to this structure, the further simplification regarding the structure of a lower tank is attained by further suppressing the installation number of the corrugated part provided in the corner part 120b.

[Other Embodiments]
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the said embodiment, although the corrugated shape in the lower tank of a tank main body was described, this invention can also be applied with respect to the structure of an upper tank. Moreover, the corrugated shape of this invention can be used regarding the structure which stacks lower tanks, the structure which stacks upper tanks, and the structure which combines and stacks an upper tank and a lower tank. Moreover, in the said embodiment, although the corrugated shape in the side wall surface of the corner part and long side part of a lower tank was described, it is also possible to apply this invention with respect to the corrugated shape in the side wall surface of the short side part of a lower tank. it can.

  In the above embodiment, for example, in the lower tank 120 of the first embodiment, the position of the upper end portion 122a of the first corrugated portion 122 in the height direction substantially matches the position of the joining flange surface of the joining flange 120a. However, in the present invention, the position of the upper end portion 122a of the first corrugated portion 122 may substantially match the position of the joint flange surface, or may be appropriately set below the position of the joint flange surface. May be.

  In the present invention, among the plurality of corrugated portions provided on the side wall surface of the tank, all or a part of the corrugated parts may be any corrugated part involved in the stacking. For example, all the corrugated parts on the side wall surface of the tank are involved in the stacking. The structure which does may be sufficient, or the structure where the corrugated part which is concerned in stacking, and the corrugated part which is not involved in stacking may coexist.

  Moreover, when based on description of each embodiment and the various modifications which were demonstrated above, in this invention, the water treatment mechanism (water treatment mechanism 102) which performs a process of to-be-processed water is a structure which does not make it a structural requirement. The configuration (embodiment 1 to embodiment 5) of the tank-shaped body can be taken.

(Aspect 1)
In the present invention, as aspect 1, "a tank-like body constituting a water treatment apparatus for treating water to be treated, which is composed of a bowl-shaped upper tank and a lower tank whose plan view is substantially rectangular, these upper tank and It is a structure formed by joining the joint flange surfaces of the lower tank, and at least one of the upper tank and the lower tank includes a plurality of corrugated portions in which the side wall surface of the tank is recessed toward the inner peripheral side, The plurality of corrugated portions include at least one set of corrugated portions that are point-symmetric with respect to a central point at which the long side center line and the short side center line intersect in the corner region of the tank. A configuration in which the positions of the upper end portions of the corrugated portions that are symmetrical are different in the height direction is considered.
According to the first aspect, as in the invention described in claim 1, in the stacking operation of the upper tank or the lower tank forming the tank-like body, the stability of the stacked state is improved and the work related to the stacking work is performed. It is possible to improve the performance.

(Aspect 2)
Further, in the present invention, as aspect 2, "the tank-shaped body according to aspect 1, wherein at least one of the upper tank and the lower tank is point-symmetric with respect to the center point in a corner area of the tank. The tank-like body characterized in that the at least one set of corrugated portions includes a corrugated portion in which the position of the upper end portion substantially coincides with the position of the joint flange surface in the height direction. It is done.
According to such aspect 2, as in the invention described in claim 2, by extending the position of the upper end portion of a part of the corrugated portion to the joining flange surface, the corrugated portion and the joining flange are connected to each other. Thus, a higher reinforcing effect of the entire tank can be obtained as compared with the case where the position of the upper end portion of the corrugated portion is located below the joining flange surface.

(Aspect 3)
Moreover, in this invention, it is a tank-like body as described in aspect 1 or 2 as aspect 3, Comprising: At least one of the said upper tank and a lower tank is installed in the said corrugated part inside the said tank. A configuration of a tank-like body characterized by including a corrugated portion used as a mounting seat for the interior member is conceivable.
According to such an aspect 3, as in the invention described in claim 3, the corrugated portion involved in the stacking of the upper tank or the lower tank forming the tank-like body is used for attaching the interior member in the tank. Is reasonable.

(Aspect 4)
Moreover, in this invention, it is the tank-shaped body as described in any one of aspects 1-3 as aspect 4, Comprising: The partition extended along the short side direction of the said lower tank in order to partition the inside of the said lower tank A plate and an inserted portion in which the interval between adjacent corrugated portions on each side wall surface facing each other is set based on the thickness of the partition plate, and the partition plate can be inserted into the inserted portion. A configuration of “a tank-like body characterized by being present” is conceivable.
According to the fourth aspect, as in the fourth aspect of the invention, the corrugated portion involved in the stacking of the upper tank or the lower tank forming the tank-like body is further used as a guide for inserting the partition plate. Is possible.

(Aspect 5)
Moreover, in this invention, it is the tank-shaped body as described in "Aspect 4 as aspect 5, Comprising: The said insertion part is a structure in which the space | interval of an adjacent corrugated part substantially corresponds to the thickness of the said partition plate, and thereby A configuration in which the operation in the long side direction of the partition plate in a state of being inserted into the insertion portion is restricted is conceivable.
According to such an aspect 5, as in the invention described in claim 5, the corrugated portion involved in the stacking of the upper tank or the lower tank forming the tank-like body is used as a guide for inserting the partition plate, Further, it can be used for fixing the partition plate.

It is a figure which shows the external appearance of the water treatment apparatus 100 which is one Embodiment of the "water treatment apparatus" in this invention. It is a side view of the lower tank 120 of 1st Embodiment. It is a top view of the lower tank 120 of 1st Embodiment. It is a figure which shows the mode at the time of stacking the upper lower tank 120 shown by a dashed-two dotted line from the upper direction of the lower lower tank 120 shown by a continuous line. It is a figure which shows the AA line cross-section structure in FIG. 4 in the state which accumulated the lower tank 120. FIG. It is a side view of the lower tank 220 of 2nd Embodiment. It is a top view of the lower tank 220 of 2nd Embodiment. It is a figure which shows the mode at the time of stacking the upper lower tank 220 shown by a dashed-two dotted line from the upper direction of the lower lower tank 220 shown by a continuous line. It is a figure which shows the BB sectional structure in FIG. 8 in the state which accumulated the lower tank 220. FIG. It is a figure which shows the external appearance of the water treatment apparatus 300 which is one Embodiment of the "water treatment apparatus" in this invention. It is a side view of the lower tank 320 of 3rd Embodiment. It is a top view of the lower tank 320 of 3rd Embodiment. It is a figure which shows the mode at the time of stacking the upper lower tank 320 shown by a dashed-two dotted line from the upper direction of the lower lower tank 320 shown by a continuous line. It is a figure which shows the CC sectional view structure in FIG. 13 in the state which accumulated the lower tank 320. FIG. It is a figure explaining the structure for attaching the partition plate 130 in the lower tank 320 of 3rd Embodiment. It is a figure explaining the structure for attaching the partition plate 130 in the lower tank 120 of 3rd Embodiment. It is a figure explaining the structure for attaching the partition plate 130 in the lower tank 320 of 3rd Embodiment. It is a top view of the lower tank 420 of 4th Embodiment. It is a top view of the lower tank 520 of 5th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100, 300 ... Water treatment apparatus 101, 301 ... Tank main body 102 ... Water treatment mechanism 103 ... Inflow part 104 ... Outflow part 105 ... Manhole 110, 310 ... Upper tank 110a, 120a, 220a ... Joining flange 110b, 120b, 220b ... Corner Parts 120, 220, 320, 420, 520 ... Lower tank 121, 221 ... Corrugated region 122, 222 ... First corrugated part 122a, 123a, 222a, 223a ... Upper end part 123, 223 ... Second corrugated part 124, 124a, 224 ... Space 125 ... Third corrugated part 126 ... Fourth corrugated part 127 ... Inserted part 130 ... Partition plate

Claims (5)

A water treatment device that houses a water treatment mechanism that treats water to be treated in a tank body,
The tank body is composed of a bowl-shaped upper tank and a lower tank whose plan view is substantially rectangular, and is formed by bonding the flange flange surfaces of the upper tank and the lower tank,
At least one of the upper tank and the lower tank includes a plurality of corrugated portions in which the side wall surface of the tank is recessed toward the inner peripheral side, and the plurality of corrugated portions includes a long side center in a corner region of the tank. And at least one set of corrugated portions that are point-symmetric with respect to a center point where the line and the short-side center line intersect, and the positions of the upper end portions of the corrugated portions that are point-symmetric with each other are different with respect to the height direction. A water treatment apparatus characterized by having a configuration. The water treatment device according to claim 1,
At least one of the upper tank and the lower tank is connected to the at least one set of corrugated portions that are point-symmetric with respect to the center point in the corner region of the tank, and the upper end portion is positioned in the height direction with respect to the height direction A water treatment apparatus comprising a corrugated portion that substantially matches a position of a surface. The water treatment device according to claim 1 or 2,
At least one of the upper tank and the lower tank is configured to include a corrugated portion used as a mounting seat for an interior member installed in the tank in the plurality of corrugated portions. The water treatment device according to any one of claims 1 to 3,
The tank body has a partition plate extending along the short side direction of the lower tank to partition the interior of the lower tank, and a gap between adjacent corrugated portions on each side wall surface facing each other. The water treatment apparatus is characterized in that the partition plate is inserted into the inserted portion. The water treatment device according to claim 4,
The inserted portion has a configuration in which an interval between adjacent corrugated portions substantially matches a thickness of the partition plate, thereby restricting movement of the partition plate in the long side direction inserted into the inserted portion. The water treatment apparatus characterized by the above-mentioned.

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