JP2019163619A - High head water treatment apparatus - Google Patents

Abstract

To provide a high head water treatment apparatus simple in structure, easily assemblable and manufacturable at low cost, and allowing easy inside maintenance and inspection work.SOLUTION: In a high head water treatment apparatus, spiral flow guiding members formed with a center column inserting hole at one end are spirally arranged around an erected center column and a spiral flow guiding passage is formed inside, side wall member supporting column insertion holes are formed at a nosing part and a tail part of the other end of the spiral flow guiding members, the mutually adjacent spiral flow guiding members are arranged in such a manner that the side wall member supporting column insertion hole formed at the nosing part of the spiral flow guiding member positioned upward is superposed on the side wall member supporting column insertion hole formed at the tail part of the spiral flow guiding member positioned downward, the mutually adjacent spiral flow guiding members are coupled by two nuts screwed to the side wall member supporting column erected by inserting into the two superposed side wall member supporting column insertion holes, and the side wall member is supported between the adjacent side wall member supporting columns.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a high-head water treatment device that spirals down inflow water such as rainwater and sewage falling at a high head.

  In recent years, efficient drainage and maintenance management has been required, and manholes with high heads ranging from several meters to more than 10 meters have been installed to allow rainwater and sewage to pass through from one pipe to the other. There is an increasing number of constructions that flow down to the pipes.

When inflowing water such as rainwater and sewage falls down a high head, there are the following problems.
(1) The bottom of the manhole is washed by the fall of rainwater or sewage.
(2) Manhole wall concrete deteriorates due to scattering of rainwater and sewage.
(3) Noise and odor are generated by the fall of rainwater or sewage.

As a high-head water treatment device that eliminates these problems, a high-head water treatment device that inserts a continuous spiral plate inside the vertical pipe and drops rainwater and sewage to form a spiral flow is installed in the manhole. It is known to install in (refer patent document 1).
However, this conventional high-head water treatment device can effectively reduce the water drop energy, but a continuous spiral plate is attached around the hollow vertical gutter inside the vertical pipe. Manufacture requires advanced technology, and the equipment must be expensive.
In addition, it is extremely difficult for an operator to enter the vertical pipe, and when dust contained in rainwater gets caught on or adheres to the spiral plate, it is difficult for the operator to perform maintenance inside the vertical pipe. was there.

JP-A-8-41915

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to provide a high-head water treatment device that is not complicated in structure, can be easily assembled, and can be manufactured at low cost. In addition, it is intended to provide a high-head water treatment device that can easily carry out operations such as internal maintenance and inspection.

In order to solve the above problems, the present invention employs the following means.
[1] A spiral flow guide member formed by arranging a spiral flow guide member having a core column insertion hole formed at one end thereof in a spiral shape around a vertically disposed core column. In the water drop treatment apparatus, side wall member support column insertion holes are formed in the nose portion and the bottom edge portion of the other end of the spiral flow guide member, and the spiral flow guide members adjacent to each other are positioned on the upper side. The side wall member support column insertion hole formed in the nose portion of the spiral flow guide member and the side wall member support column insertion hole formed in the step bottom portion of the spiral flow guide member positioned below are arranged to overlap. The two spiral flow guide members adjacent to each other are fastened by two nuts that are screwed into the side wall member support columns that are vertically installed by being inserted into the two side wall member support column insertion holes, and The side wall member is supported between adjacent side wall member support pillars, High head water treatment apparatus according to claim, characterized in that the wall is formed.
[2] The side wall member includes a plate-like portion and a cylindrical portion provided at each of the left and right side ends of the plate-like portion, and a side wall member support column is inserted into the cylindrical portion. The high-head water treatment device according to [1].
[3] The cylindrical portion is provided on one of the left and right side end portions of the plate-like portion at the upper portion of the side end portion, and on the other of the left and right side end portions of the plate-like portion, the lower portion of the side end portion. The high-head water treatment device according to [2], wherein the high-head water treatment device is provided.
[4] The spiral flow guide member includes a plate-like portion, a rib portion arranged on a lower surface of the plate-like portion, and a peripheral wall of a core column insertion hole continuous with the rib portion. ] The high-head water treatment apparatus according to any one of [3].
[5] A manhole in which the high-head water treatment apparatus according to any one of [1] to [4] is installed.

  In the high-head water treatment apparatus of the present invention, the upper and lower spiral flow guide members adjacent to each other are attached to the periphery of the core column with the side wall member support column and two nuts as the center to form the spiral flow guide path of the influent water. Furthermore, since the side wall of the high-head water treatment device is formed by supporting the side wall member between the two side wall member support pillars, the assembly is easy, and each member required for the assembly is compared. Therefore, the manufacturing cost does not increase. In addition, since the spiral flow guide member can be used as a tread board, the operator can move up and down in the high-head water treatment device, and the worker can easily perform maintenance inspection inside and outside the high-head water treatment device. it can.

1 is an overall front view of a high-head water treatment device according to an embodiment of the present invention. It is the external appearance schematic of the principal part of the high-head water processing apparatus which concerns on embodiment of this invention. It is a schematic plan view of the principal part of the high-head water treatment apparatus which concerns on embodiment of this invention. It is the top view (a) and front view (b) of the spiral flow guide member which concern on embodiment of this invention. It is a figure which shows the means to erect a mandrel. It is a figure which shows the side wall member support pillar standingly arranged by the two spiral flow guide members located up and down. It is an external view of the principal part of the high drop water treatment apparatus of this invention by which the four-stage spiral flow guide member was expand | deployed helically. It is a figure which shows the side wall member support pillar standingly arranged in the 1st step | line of the spiral flow guide path, or the uppermost spiral flow guide member. 1 illustrates one embodiment of a side wall member. (A) is a top view, (b) is a front view. The state which the side wall member was installed between the side wall member support pillars is shown. (A) is a top view, (b) is a front view. It is an external view of the high-head water treatment apparatus of the present invention in which four-stage spiral flow guide members are spirally developed. It is a schematic diagram which shows the cross section of the foam in which the outer skin and the foaming core material were integrally molded. FIG. 6 shows a perspective view of different embodiments of a spiral flow guide member. FIG. 14 is a top view (a), a side view (b), a sectional view (c), and a bottom view (d) of the spiral flow guide member shown in FIG. 13. The high head water treatment device installed in the manhole is shown.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
FIG. 1 is an overall front view of a high-head water treatment device 100 according to an embodiment of the present invention, and FIG. 2 is an external view schematically showing a main part of a spiral flow guide path formed in the high-head water treatment device. 3 is a plan view schematically showing the main part of the spiral flow guide path formed in the high-head water treatment apparatus.
Here, 1 is a core column made of a hollow cylindrical body, 2 is a spiral flow guide member, 3 is a side wall member support column, and 4 is a side wall member. The side wall member 4 forms the side wall of the high-head water treatment apparatus 100.
FIG. 2 shows the side wall member support column 3 erected on the spiral flow guide member 2, but the high head water treatment apparatus 100 in a state where the side wall member 4 is not installed between the side wall member support columns. It is shown.

  Inflow water such as rain water and sewage flowing from the upper inlet of the high-head water treatment apparatus 100 flows down the spiral flow guide path formed by the spiral flow guide member 2 and flows out from the lower outlet. In FIG. 1, the inlet and the outlet are not shown.

The top view and front view of one Embodiment of the spiral flow guide member 2 which forms a spiral flow guide path in FIG. 4 (a), (b) were shown.
A central column insertion hole (through hole) 23 is formed in the inner end 21 (the end on the center side of the high-head water treatment device), which is one end of the spiral flow guide member 2. As can be seen, the core column 1 is inserted into the core column insertion hole 23 and a plurality of spiral flow guide members 2 are developed around the core column around the core column 1 to form a spiral flow guide path. The
The spiral flow guide member 2 shown in FIG. 4 has a substantially fan shape that gradually widens from the vicinity of the inner end portion toward the outer end portion 22 (the outer end portion of the spiral flow guide path) that is the other end portion. The thickness is constant. In the figure, the inner end portion is slightly thickened to provide the core column insertion hole 23. However, as shown in the spiral flow guide member shown in FIG. 2, the inner end portion is gradually narrowed toward the inner end portion. May be.

As can be seen from FIG. 4, side wall member support column insertion holes 24, 24 into which the side wall member support columns 3 are inserted are provided at two portions of the outer end portion of the spiral flow guide member 2, that is, the nose portion and the step bottom portion. Is formed. The side wall member support column insertion holes 24, 24 penetrate the spiral flow guide member 2 in the thickness direction.
Here, when the spiral flow guide member 2 forming the spiral flow guide path is lifted as a stepping plate of the staircase, the nose portion and the step bottom portion are the front side portion of the spiral flow guide member 2, It points to the back part. FIG. 5 showing a part of the spiral flow guide route that goes clockwise shows the nose portion 25 and the stepped portion 26.

An example of the assembly procedure of the spiral flow guide path will be described below, and the structure of the spiral flow guide path will be shown.
First, the pillar 1 is erected.
For example, as shown in FIG. 5, the means for erecting the core column 1 includes a disk-shaped seat plate 7 in which a hollow core body 8 having an outer diameter of the same size as the inner diameter of the core column is erecting. (It is not shown) It can fix to the ground and the floor surface of the installation place of a high head water treatment apparatus, and can mount this core pillar 1 to this hollow core body 8, and can stand upright. It is desirable that the upper surface of the seat plate 7 be the same height as the upper surface of the ground or floor surface. The means for standing the core column 1 is not necessarily limited to this, and an operator may support the column 1 at the time of assembling the spiral flow guide path.

  Next, the spiral flow guide member 2, which is the first stage of the spiral flow guide path, is inserted into the core column insertion hole 23 of the spiral flow guide member 2 from the upper end of the standing column 1. And attach to the core column 1. Subsequently, the second-stage spiral flow guide member 2 is attached to the core column 1 in the same manner and stacked on the first-stage spiral flow guide member.

And as shown in FIG. 5, the side wall member support column insertion hole 24 formed in the step bottom portion 26 at the outer end of the first-stage spiral flow guide member and the outer end of the second-stage spiral flow guide member The second-stage spiral flow guide member is disposed on the first-stage spiral flow guide member so that the side wall member support column insertion hole 24 formed in the second nose part 25 overlaps.
Therefore, after the arrangement is completed in this way, as can be seen from FIG. 2, the upper surface of the stepped portion of the first-stage spiral flow guide member and the lower surface of the nose portion of the second-stage spiral flow guide member Will come into contact. In FIG. 2, when the spiral flow guide path is directed from the bottom to the top, the second-stage spiral flow guide member is centered on the center column and the second-stage spiral flow guide member is a clock hand. It is arranged in a state where it is rotated by a predetermined angle in the opposite direction to the movement of.

  And the side wall member formed in the said nose part 25 of the 2nd step | paragraph spiral flow guide member which overlapped with the side wall member support pillar insertion hole 24 formed in the said step bottom part 26 of the 1st step | paragraph spiral flow guide member. The side wall member support column 3 is inserted into the support column insertion hole 24 until it reaches the lower end of the side wall member support column insertion hole of the first-stage spiral flow guide member (see FIGS. 5 and 6). By doing so, the first-stage spiral flow guide member 2 and the second-stage spiral flow guide member 2 are arranged so as to form a predetermined angle with the center column 1 as the center.

  As shown in FIG. 6, a threaded portion 31 of a male screw is formed at the lower end portion of the side wall member supporting column 3, and the nut 5 can be screwed and fitted. . Then, the upper part of the spiral flow guide member 2 (second stage spiral flow guide member) and the lower part of the spiral flow guide member 2 (first stage spiral flow guide member) are fastened by two nuts. To do.

  Thus, the two spiral flow guide members 2 (that is, the first and second spiral flow guide members) are integrated with each other so that they are not displaced from each other, and the side wall member support column 3 is the side wall member support column. The side wall member support pillar 3 and the two spiral flow guide members 2 are also integrated so as not to come out of the insertion hole 24. Since the two spiral flow guide members 2 are also supported by the core column 1 inserted through the core column insertion hole 23, the two spiral flow guide members 2 are surely arranged in a spiral shape with the core column 1 as a center. The first and second stages of the spiral flow guide path are formed around the core column.

  Similarly, the core column 1 is inserted into the core column insertion hole 23 of the spiral flow guide member 2 from the upper end of the standing column 1 of the spiral flow guide member 2 at the third stage. And is stacked on the second-stage spiral flow guide member 2. Then, the side wall member support column insertion hole 24 formed in the step bottom portion 26 at the outer end portion of the second-stage spiral flow guide member 2 and the nose portion 25 at the outer end portion of the third-stage spiral flow guide member 2. The third-stage spiral flow guide member 2 is disposed on the second-stage spiral flow guide member 2 so as to overlap the side wall member support column insertion hole 24 formed on the side wall. Is inserted and erected until it reaches the lower end of the side wall member support column insertion hole 24 of the second-stage spiral flow guide member 2, and the two nuts screwed into the side wall member support column 3 are fitted upward. The spiral flow guide member (third spiral flow guide member) positioned and the spiral flow guide member (second spiral flow guide member) positioned thereunder are sandwiched and fastened.

  In this way, the two spiral flow guide members 2 (that is, the second and third spiral flow guide members) are integrated with each other so that they are not displaced from each other, and the side wall member support column 3 is the side wall member support column. The side wall member support column 3 and the two spiral flow guide members 2 are integrated so as not to come out of the insertion hole 24. Since the two spiral flow guide members are also supported by the core column 1 inserted through the core column insertion hole 23, the spiral flow guide members from the first stage to the third stage center on the core column. As a result, it is surely arranged in a spiral in a solid state.

Similarly, the spiral flow guide member 2 from the fourth stage to the uppermost stage can be assembled in a spiral manner around the core column 1 around the core column 1 by the same procedure. .
Therefore, in the spiral flow guide path of the present invention, the n-th (n is an integer) spiral flow guide member 2 located on the lower side and the (n + 1) -th spiral flow guide member 2 located on the upper side are adjacent to each other. Are the side wall member support column insertion hole 24 formed in the nose portion 25 at the outer end of the (n + 1) -th stage spiral flow guide member located on the upper side and the n-th stage spiral flow guide member located on the lower side. Side wall member that is disposed so as to overlap with the side wall member support column insertion hole 24 formed in the stepped portion 26 at the outer end of the side wall member, and is erected through the two overlapping side wall member support column insertion holes 24 The two nuts 5 screwed into the support pillar 3 are fastened with the n-th and (n + 1) -th spiral flow guide members adjacent to each other being sandwiched.

In FIG. 7, the spiral flow guide members 2 up to the fourth step are arranged in a spiral shape, and the spiral flow guide members 2 from the first step to the fourth step are spiraled using three side wall member support columns 3. Spiral flow guides arranged in a shape are shown. A nut 5 (not shown) is attached to each side wall member support column to fasten the upper and lower spiral flow guide members.
In FIG. 7, the side wall member support column 3 is also erected in the side wall member support column insertion hole 24 formed in the nose portion 25 at the outer end of the first-stage spiral flow guide member 2. This will be described later.

  Between the second-stage spiral flow guide member 2 and the uppermost-stage spiral flow guide member 2, the two adjacent spiral flow guide members 2 are clamped by two nuts 5 inserted through the side wall member support pillars 3. In this case, the configuration shown in FIG. 6 (a) may be used, but as can be seen from FIG. 2, a space is formed below the lower surface of the second and subsequent spiral flow guide members, so the lower nut 5 And the form shown in FIG.6 (b) from which the side wall member support pillar lower end protrudes may be sufficient.

That is, in FIG. 6A, the lower nut 5 is embedded in the spiral flow guide member on the lower surface of the spiral flow guide member 2 without the lower end of the side wall member support column 3 protruding from the lower surface of the spiral flow guide member 2. 6 (b), the lower end of the side wall member support column 3 protrudes from the lower surface of the spiral flow guide member 2, and the lower nut 5 also has a spiral flow guide member. The embodiment which protrudes from the lower surface and is arrange | positioned is shown.
The length of the threaded portion 31 formed at the lower end portion of the side wall member support column 3 inserted into the side wall member support column insertion hole 24 at the outer end portion of the two overlapping spiral flow guide members is as shown in FIG. As can be seen from (b), since the two spiral flow guide members are sandwiched between the nuts 5, they are slightly longer than the thickness of the two spiral flow guide members 2.

  On the other hand, the side wall member support column insertion hole 24 is formed in the nose 25 at the outer end of the first spiral flow guide member 2 and the step bottom 26 at the outer end of the uppermost spiral flow guide member. When the member support column is erected, as shown in FIG. 2, the side wall member support column 3 is erected by inserting the side wall member support column 3 into the side wall member support column insertion hole 24 of one spiral flow guide member. Therefore, as shown in FIGS. 8A and 8B, the length is shorter than the side wall member support column 3 shown in FIG. 6 by the thickness of one spiral flow guide member, and the threaded portion at the lower end portion. The side wall member 31 is slightly longer than the thickness of one spiral flow guide member 2, and the upper surface and the lower surface of one spiral flow guide member are clamped by two nuts 5 to tighten the side wall member. The support column 3 and one spiral flow guide member 2 are integrated so that the side wall member support column 3 is the side wall member support column. To prevent escape from necessity hole 24.

Since the lower surface of the first-stage spiral flow guide member 2 is in contact with the ground and the floor, and the lower surface of the bottom edge portion 26 of the uppermost spiral flow guide member 2 is a space, the former first-stage spiral nose portion Then, it is desirable to adopt the form of FIG. 8A, and any form of FIGS. 8A and 8B may be used at the uppermost stage bottom of the latter.
In addition, the side wall member support column 3 of the nose portion 25 of the first-stage spiral flow guide member 2 and the side wall member support column 3 of the step bottom portion 26 of the uppermost spiral flow guide member 2 may be omitted. In this case, the side wall member 4 cannot be provided in the first and uppermost spiral flow guide members 2.

The spiral flow guide member 2 is attached by inserting the core column 1 into the core column insertion hole 23 at the inner end of the spiral flow guide member 2 at the upper end of the standing column 1. If the height is high, it may be difficult to attach the spiral flow guide member 2. In the spiral flow guide path of the four-stage spiral flow guide member shown in FIG. 7, the height of the core column 1 is not so great, but as the number of stages of the spiral flow guide member 2 increases, the core column 1 also increases.
In such a case, the mandrel 1 can be dealt with by using a split type instead of a single unit.
If the split type is used, a predetermined number of spiral flow guide members 2 are attached to the core column 1, and as described above, a spiral flow guide path corresponding to the predetermined number of spiral flow guide members is constructed. The split-type core column 1 is added, and a predetermined number of spiral flow guide members 2 may be attached.
In order to add the split-type core column 1, threaded portions that are fitted to each connection port are formed and screwed together, or a hollow core body for connection is inserted into each connection port, and an embedded pin Can be connected to each other, and the split-type core column 1 can be added.

  The assembly procedure of the spiral flow guide path of the present invention is not limited to the above-described one. For example, it is also possible to assemble the spiral flow guide path by inserting the spiral flow guide member 2 constituting the spiral flow guide path into the core pillar 1 in a state where the core pillar 1 is set sideways, and then standing the core column.

  Side wall members 4 are installed between the support columns of the side wall member support columns 3 that are erected. FIG. 9 shows the side wall member 4, and FIG. 10 shows the side wall member 4 installed between the two side wall member support columns 3 erected on the spiral flow path guide member. The side wall member 4 constitutes a side wall of the high-head water treatment device.

  In the embodiment shown in FIG. 9, the side wall member 4 includes a plate-like portion 41 having a width and a predetermined height (length) corresponding to adjacent side wall member support columns, and left and right side end portions of the plate-like portion. The left cylindrical portion 42 is a lower portion of the left side end portion of the plate-like portion 41, and the right cylindrical portion 42 is an upper portion of the right side end portion of the plate-like portion 41. Are provided respectively. The plate-like portion 41 is curved slightly outward in FIG. 9 and FIG. 10 (that is, on the outer peripheral side of the spiral flow guide path), but may be flat.

  Then, the side wall member 4 is moved downward from above the side wall member support column 3 so that the side wall member support column 3 is inserted into the center hole of the left and right cylindrical portions 42, and the lowermost side of the side wall member 4 is on the lower side. The side wall member 4 is attached and supported between the two side wall member support columns 3 by moving the spiral flow guide member 2 so as to contact the upper surface. If the side wall member 4 is installed between the two side wall member support columns, the side wall of the high-head water treatment device is formed. As a result, the side wall is formed in a spiral shape along the spiral flow guide path.

  In FIG. 10B, the cylindrical portion 42 is not drawn at the upper portion of the left side end portion and the lower portion of the right side end portion of the plate-like portion 41, but here the cylindrical portions of the side wall members 4 adjacent to the left and right are shown. Will be placed. That is, in this figure, on the upper part of the left side end part of the plate-like part 41, a cylindrical part provided at the upper part of the right side end part of the side wall member (not shown) adjacent to the left side of the side wall member 4 is arranged, A cylindrical portion provided at a lower portion of a left side end portion of a side wall member (not shown) adjacent to the right side of the side wall member 4 is disposed at a lower portion of the right side end portion of the plate-like portion 41. In FIG. 10B, only the upper nut 5 is shown, and the lower one is not shown.

  As can be seen from FIG. 9B and FIG. 10B, a recess in which a part of the nut 5 is accommodated is formed on the left side of the lower end of the side wall member 4. Further, on the right side of the lower end of the side wall member 4, a stepped recess is formed in which a portion of the nose portion of the spiral flow guide member 2 and a part of the nut 5 are accommodated. By doing so, the lower side portion of the side wall member 4 is in contact with the surfaces and side surfaces of the two spiral flow guide members 2, and inflow water such as rainwater and sewage is formed between the lower side portions of the side wall member and the spiral flow guide member. Can be prevented from leaking.

  As can be seen from FIG. 10B, the upper end portion of the side wall member support column 3 is exposed with a predetermined dimension from the cylindrical portion 42 at the upper side end portion of the side wall member 4. A nut 6 for holding a tube wall member such as a nut or a cap nut is attached, and the nut 6 for holding the tube wall member is rotated to rotate the side wall member 4 in the direction in which the side wall member is pressed against the spiral flow guide member. It is desirable that the cylindrical portion 42 at the upper side end portion and the cylindrical portion 42 at the lower end portion of the adjacent side wall member be tightened. In this case, a male screw groove (not shown in FIGS. 6 and 8) is formed in the upper end portion of the side wall member support column 3.

  In FIG. 11, the side wall member 4 is installed between the columns of the four side wall member support columns 3 erected on the spiral flow guide member 2 spirally stacked around the core column 1 up to the fourth level. A spiral guideway is shown. In this figure, the three side wall members constitute the side wall of the high-head water treatment apparatus 100.

  Similarly, by attaching the side wall member 4 between all the adjacent side wall member support columns, the outer peripheral edge of the spiral flow guide path can be enclosed at a predetermined height. By doing so, inflow water such as rain water and sewage inside can be prevented from leaking as much as possible from the side walls between the side wall member support columns. Even if a small amount of water leaks, there is no practical problem.

  Inflow water such as rainwater and sewage flowing from the upper part of the high head water treatment device 100 is guided by the spiral flow guide path and the side wall of the high head water treatment device 100 formed by the side wall member 4 to form a spiral flow. Then, it flows down to the lower part of the high head water treatment apparatus 100. For this reason, inflow water forms a gentle flow from the upper part to the lower part, and flows down a high head. Although not shown in FIG. 1, it is desirable to cover the top of the core column 1 so that water and foreign matter do not enter the hollow core column.

In FIG. 1, the inlet and outlet of the inflowing water are not shown. However, in the place where the high head water flows in and out, the inflow pipe of the inflowing water such as rainwater and sewage and the outflow and outflow of the inflowing water are provided. Therefore, the spiral flow guide path of the high-head water treatment apparatus 100 may be formed in accordance with the inlet of the inlet pipe and the outlet of the outlet pipe.
The same applies to the case where the high-head water treatment apparatus 100 is installed in the manhole, and the spiral flow guide path of the high-head water treatment apparatus 100 is formed in accordance with the inflow and outflow pipe ports of rainwater and sewage in the manhole. Can be installed.

The upper side of the side wall member 4 shown in FIG. 9 is inclined upward from the left to the right, and the right side is longer than the left side by the thickness of the spiral flow guide member 2. This is so that the upper side of the side wall member standing on the outer peripheral edge of the spiral flow path guiding path rises continuously and continuously as shown in FIG.
The shape of the side wall member 4 is not limited to this, and the side wall member 4 can be made rectangular by making the upper side of the side wall member 4 horizontal from the left side to the right side. In this case, the upper side of the side wall member 4 rises stepwise.

The cylindrical portion of the side wall member 4 is integrally provided at the left and right side end portions of the plate-like portion 41, but when the cylindrical portion 42 of one side end portion is provided at the upper portion of the side end portion, The cylindrical portion 42 at the other side end is provided below the side end. Further, the left and right cylindrical portions provided at the side end portions of the plate-like portion 41 need not have the same length.
By carrying out like this, the side wall member 4 of the same shape can be used, and the side wall member 4 can be unitized. And if the side wall member 4 is installed in order from the lowermost stage of the spiral flow guideway to the uppermost stage, or from the uppermost stage of the spiral flow guideway to the lowest stage, the side wall of the high-head water treatment device 100 Can be constructed without gaps. As can also be seen from FIG. 1, the side wall portion support pillar 3 erected on the nose portion 25 of the lowermost spiral flow guide member 2 and the step bottom portion 26 of the uppermost spiral flow guide member 2 One of the cylindrical portions 42 is omitted, but a cylindrical member may be used to wrap the column at this portion.

As described above, the high-head water treatment apparatus 100 assembles the spiral flow guide path with the side wall member support column 3 and the nut 5 from the spiral flow guide member 2 inserted into the core column 1, and then the side wall member 4 between the side wall member support columns. Since the side wall can be formed by installing the, it is possible to easily assemble without requiring much skill and without using a large heavy machine. The manufacturing cost can also be suppressed because each member constituting the high-head water treatment device is relatively inexpensive.
Further, the overlap width of the upper and lower spiral flow guide members adjacent to each other can be changed only by changing the position of the side wall member support column insertion hole 24 in the direction along the outer periphery of the outer end portion of the spiral flow guide member. Further, the turning angle of the spiral flow guide path can be easily adjusted.

  The side wall member can be made of corrosion-resistant stainless steel or aluminum alloy, but for further weight reduction and corrosion resistance, a synthetic resin material such as a high-strength fiber reinforced plastic material is used. Is desirable.

The spiral flow guide member 2 can be made of a metal such as corrosion-resistant stainless steel or aluminum alloy, but can also be made of a foam made of an outer skin and a foamed core material in order to reduce the weight. A schematic diagram of a cross section of the spiral flow guide member 2 made of this foam is shown in FIG.
The foamed body 9 is a foamed core material 91 made of foamed resin, and the outer skin 92 covers the foamed core material 51. The outer skin and the foamed core material are integrated by using a blow molding method or a vacuum impregnation method. Can be manufactured.
The foam 9 has low strength only by the foam core 91, but the foam core 91 is integrated with the outer skin 92, so that the strength is dramatically improved, and the load resistance, durability, and corrosion resistance are improved. Are better. Moreover, since the foam core material occupies most of the volume, it is lightweight. Accordingly, the spiral flow guide path can be made lightweight.

  The core column 1 is a hollow long cylindrical material, and can be made of a metal such as a stainless steel material or an aluminum alloy material, similarly to the spiral flow guide member. However, in order to further reduce the weight. It is desirable to use a synthetic resin, and a fiber reinforced plastic material is also suitable in terms of strength. Synthetic resin products do not corrode due to rust, etc., so they have corrosion resistance.

The side wall member support column 3 is also a hollow long cylindrical material similar to the core column 1 and can be made of metal like the spiral flow guide member 2, but for further weight reduction. In addition, it is desirable to use a synthetic resin, and a fiber reinforced plastic material is suitable in terms of strength. Synthetic resin products do not corrode due to rust, etc., so they have corrosion resistance.
Similarly, it is desirable that the nuts attached to the threaded portion of the side wall member support column be made of a plastic material such as a fiber-reinforced plastic that is corrosion resistant and lightweight.

FIG. 13 is a perspective view of another embodiment of the spiral flow guide member. FIG. 14 is a top view, a side view, a cross-sectional view, and a bottom view.
As can be seen from FIGS. 13 and 14, the spiral flow guide member 2 includes a substantially fan-shaped plate-shaped portion 27 and a rib portion 28 disposed on the back surface of the plate-shaped portion. An upper surface portion of the flow guide member is formed, and the rib portion 28 is disposed on the lower surface (back surface) of the plate-like portion 27 at a right angle to the surface, and spirals with the thickness of the plate-like portion and the height of the rib portion. The height of the flow guide member 2 is formed.
By extending the rib portion around the lower surface of the plate-like portion, the strength as the spiral flow guide member can be maintained.

  In FIG. 13 and FIGS. 14A to 14D, the rib portion 28 is the center of the substantially fan-shaped plate-like portion 27 from the inner end portion 21 toward the outer end portion 22 of the spiral flow guide member 2. On the line, it extends in a straight line from a peripheral wall near the outer end of the core post insertion hole, which will be described later, to a location about ½ of the length of the plate-like portion, and then branches at this location to branch the spiral flow guide member. It extends in a circular arc shape to the nose portion and the step bottom portion, and further extends toward the center line of the plate-like portion of the outer end portion 22 to form a substantially triangular shape.

A cylindrical peripheral wall of the core column insertion hole 23 is formed downward from the upper surface of the spiral flow guide member at the inner end 21 of the plate-like portion, and a portion of the peripheral wall near the outer side of the spiral flow guide member is spiral. The rib portion 28 is continued on the flow guide member center line, and the height of the peripheral wall is equal to the height of the spiral flow guide member 2.
Also, the rib portion 28 is disposed on the lower surface (back surface) of the plate-like portion at the outer end portion 22 of the spiral flow guide member, and forms the peripheral surface of the outer end portion of the spiral flow guide member. The rib portions on the peripheral surface of the outer end portion are thick at both end portions (left and right in FIG. 13D), and side wall member support column insertion holes 24 are formed. By doing so, the side wall member support pillar 3 can be erected on the spiral flow guide member 2 as shown in FIGS. 6 and 8. The rib portion on the outer peripheral surface of the outer end portion is continuous with the rib portion forming the substantially triangular shape on the center line of the plate-like portion.

  As shown in FIG. 12, the spiral flow guide member having the plate-like portion and the rib portion as shown in FIG. 13 is integrated with the outer skin and the foam core material by using a blow molding method or a vacuum impregnation method. Can be made from the foam. FIG. 14 (c) shows a plate-like portion and a rib portion containing a foam core material (the portion where the lines intersect is the foam core material). It should be noted that the peripheral wall of the core post insertion hole 23 does not have a foamed core material and is formed only from the material of the outer skin.

  The shape and the like of the rib portion 28 are not limited to those shown in FIGS. 13 and 14 as long as the plate-like portion 27 can be reinforced to ensure the strength as the spiral flow guide member. Further, the spiral flow guide member shown in FIGS. 13 and 14 wraps the foam core material with the outer skin, but without using the foam core material, the spiral flow guide member (plate-like portion, rib portion only with the outer shell material). , The peripheral wall of the hole for inserting the core column) can also be formed. In this case, the dimension of each part of the peripheral part of the plate-like part, the rib part, and the core column insertion hole may be appropriately adjusted.

  In the high head water treatment apparatus 100, the spiral flow guide member 2 forming the spiral flow guide path can also be used as an operator's tread, so that dust accumulated in the high head water treatment apparatus can be removed. Maintenance management of members can be performed. Further, the side wall of the high-head water treatment device 100 does not surround the spiral guide path in a tubular shape, but spirals and surrounds the spiral flow guide path. In addition, natural daylighting is possible, and maintenance inspection work in the high-head water treatment device is easy. Therefore, when a high head water treatment device is installed in a manhole, the inside of the manhole can be inspected while moving up and down the spiral flow guide path while being in the high head water treatment device. It is also possible for the operator to descend to the bottom of the high-head water treatment device and inspect the manhole bottom and outlet. In addition, if the spiral flow guide member at the top of the spiral flow guide path is brought close to the entrance height at the top of the manhole, the operator can get down directly on the upper surface of the spiral flow guide member or from the upper surface of the manhole. Or the like (see FIG. 15). In addition, when the space between the uppermost spiral flow guide member of the spiral flow guide path and the entrance at the upper part of the manhole is separated, the worker moves in the same manner by using a step installed on the inner wall of the manhole. be able to.

  The high head water treatment apparatus 100 can raise the spiral flow guide path by stacking the spiral flow guide members around the core column 1 and deploying them in a spiral shape. Can respond. Also, if there is a space for spirally deploying the spiral flow guide member, a high-head water treatment device can be constructed, so that it can be assembled even in an installation site where there is relatively little space.

The high-head water treatment device 100 can be installed in a manhole as already described. In addition, special holes are included in the marhole. FIG. 15 shows an embodiment thereof. In this figure, 110 indicates a manhole.
In this case, the high-head water treatment apparatus 100 can be installed in the manhole after being assembled on the ground outside the manhole. However, in a manhole having a relatively large diameter, for example, 3 to 5 m or more, The spiral flow guide members 2 are arranged in a spiral manner around the column, and the spiral flow guide path is constructed. Then, the side wall member 4 is simply installed between the side wall member support columns. The installation work of the high head water treatment apparatus 100 can be easily performed.
Further, as described above, since the spiral flow guide path can be easily raised, the high head water treatment device of the present invention can easily cope with the manhole depth into which the high head water flows.
In addition, in FIG. 15, inflow water, such as rain water and sewage, is from the inflow pipe 111 provided in the upper wall of the manhole, on the uppermost stage of the spiral guide path of the high-head water treatment apparatus, and the side wall member attached to the location. It flows into the vicinity of the inner surface side, flows down the spiral flow guide path, and is discharged from the outflow pipe 112.

  Since the high-head water treatment device of the present invention can be used for raising and lowering an operator using the spiral flow guide member as a stepping plate, when installed in a manhole, maintenance inspection work in the head water treatment device and in the manhole Can also be done easily. In the conventional vertical pipe, a dedicated spiral staircase for the operator to move up and down is often provided along the vertical pipe. However, in the high head water treatment apparatus of the present invention, it is necessary to provide a spiral staircase. This is advantageous in terms of installation space and cost.

1: core column 2: spiral flow guide member 21: inner end portion 22: outer end portion 23: core column insertion hole 24: sidewall member support column insertion hole 25: spiral nose portion 26 of spiral flow guide member: spiral flow guide Stepped portion 27 of member: Plate-shaped portion 28: Rib portion 3: Side wall member support column 31: Threaded portion of side wall member support column 4: Side wall member 41: Plate-shaped portion 42: Cylindrical portion 5: Nut 6: Tube wall member Holding nut 7: Seat plate 8: Hollow core body 9 (attached to the seat plate) 9: Foam body 91: Foam core material 92: Outer skin
100: High head water treatment device
110: Manhole 111: Manhole inflow pipe 112: Manhole outflow pipe

Claims (5)

  High head water treatment with a spiral flow guide path formed by arranging a spiral flow guide member having a core column insertion hole formed at one end in a spiral shape around a standing core column A side wall member support column insertion hole is formed in the nose portion and the step bottom portion of the other end of the spiral flow guide member, and the spiral flow guide members adjacent to each other are located on the upper side. The side wall member support column insertion hole formed in the nose portion of the member and the side wall member support column insertion hole formed in the step bottom portion of the spiral flow guide member located on the lower side are arranged so as to overlap, Two side wall member support pillar insertion holes inserted into two overlapping side wall member support pillars, and two nuts screwed together to fasten the two adjacent spiral flow guide members, and are adjacent to each other. The side wall member is supported between the member support columns, and the side wall of the high head water treatment device is High head water treatment apparatus according to claim, characterized by being made.   The said side wall member consists of a cylindrical part provided in each side edge part of a plate-shaped part and this plate-shaped part, and the side wall member support pillar is inserted in this cylindrical part, It is characterized by the above-mentioned. Item 2. A high-head water treatment apparatus according to item 1.   The cylindrical portion is provided on one of the left and right side end portions of the plate-like portion at an upper portion of the side end portion, and on the other of the left and right side end portions of the plate-like portion, is provided on a lower portion of the side end portion. The high-head water treatment apparatus according to claim 2, wherein   4. The spiral flow guide member includes a plate-shaped portion, a rib portion disposed on a lower surface of the plate-shaped portion, and a peripheral wall of a core column insertion hole continuous with the rib portion. The high-head water treatment apparatus according to any one of the above.   A manhole in which the high-head water treatment device according to any one of claims 1 to 4 is installed.