JPH078080Y2 - Air diffuser support - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a support for an air diffuser installed in a treatment tank for wastewater and the like.

[Prior Art] When installing an air diffusing element of an air diffusing pipe at the bottom of a treatment tank (aeration tank, etc.) during maintenance, etc., the air feeding pipe 100 can be hung down from the tank as shown in FIG. The joint 110 connected to the lower end of the trachea 100 is supported by the support body 120, and at the same time, the air diffuser element E connected to the joint 110 is arranged at the bottom of the treatment tank A.

The conventional support 120 has a joint 110 as shown in detail in FIG.
It is composed of a downward member 121 such as a pipe and a rod connected to the above, and a lump portion 122 formed by raising concrete on the bottom surface A ₁ of the processing tank A. When the air supply pipe 100 hangs down from the tank, the downward member 121 is formed. The lower end of the was inserted into the hole 123 of the block 122.

By the way, in a treatment tank such as an aeration tank in which the diffuser element E is installed, the diffuser air from the diffuser element E is set by setting the tank bottom corner portion to the inclined surface A ₂ as shown in FIG. The treated water such as sewage is evenly convected in the tank so that the treated water in the tank is brought into contact with the filter medium and the contact plate (hereinafter referred to as contact plate) P disposed in the processing tank A as efficiently as possible. There are many

On the other hand, in order to bring the treated water in the tank into contact with the contact plate P efficiently, the corner portion of the tank bottom should be the inclined surface A ₂ as described above, and the position should be as close as possible to the side wall surface A ₃ of the processing tank A. It has been found that it is effective to install the air diffuser element E in the above and suppress the convection of the treated water between the air diffuser element E and the side wall surface A ₃ .

[Problems to be Solved by the Invention] However, when the treated water W is stored in the treatment tank A such as during maintenance, it is difficult to confirm the position of the hole 123 of the block 122 from the top of the tank. Air supply pipe 100
There is a problem in that it is difficult to insert the lower end portion of the downward member 121 into the hole 123 of the lump portion 122 accurately when it is hung from above the tank, and the insertion work is troublesome and takes a long time.

Further, since the conventional support body 120 has the above-described structure, even if the installation position of the support body 120 is brought close to the side wall surface A ₃ and the diffusing element E is installed as close as possible to the side wall surface A ₃ , the inclined surface The side wall surface is larger than the dimension corresponding to the horizontal width h of A _2.
Since had to set up the support 120 to the away position from A _3, the distance H becomes inevitably large with the diffuser element E and the side wall surface A _3, the inclination is possible to suppress convection between them There was the problem of being constrained by the presence of surface A ₂ . Further, there is a problem that it is difficult to adjust the installation position of the air diffusion element E in relation to the side wall surface A ₃ of the processing tank A and the contact plate P.

In addition, in the conventional support 120, due to various factors such as vibration during operation of the air diffusing pipe, the air diffusing element E is liable to shake laterally as illustrated by the alternate long and short dash line in FIG. 6, whereby orderly convection is formed. There is also a risk that the joint 110, the air supply pipe 100, and the air diffusing element E may be damaged.

The present invention has been made in view of the above problems and circumstances, and even if the treated water is stored in the treatment tank and it is difficult to confirm the position of the support from the tank, the air supply pipe is hung from the tank. When lowering, not only can the connection portion between the air supply pipe and the air diffusing element be easily supported by the support, but even in a treatment tank having an inclined surface at the corner of the tank bottom, air diffusion is possible. It is possible to install the element closer to the side wall surface of the processing tank than the dimension corresponding to the horizontal width of the inclined surface, or to adjust the installation position of the air diffusing element in relation to the side wall surface and the contact plate. An object of the present invention is to provide a support body for an air diffusing tube that can support the air diffusing element in a state in which it is difficult to shake laterally.

[Means for Solving the Problems] In the support for the air diffusing tube according to the present invention, a mounting portion projects from a seat plate portion fixed to the side wall surface of the processing tank, and the seat plate portion is attached to the upper end of the mounting portion. A fitting member having a guide portion extending obliquely downward and a tip end of a mounted portion that is displaceably attached to the mounting portion in the front-rear direction are fitted in a fitting shape at a lower end of an air supply pipe to which an air diffusing element is connected. It has a plate-shaped U-shaped support part to be held and a support body main body extending from the support part.

[Operation] In this configuration, when the seat plate portion of the support is fixed to the side wall surface of the treatment tank, the guide portion provided in the attachment portion is connected to the side wall surface of the treatment tank, and the side wall surface and the guide portion form the diffuser pipe. It serves as a guide for guiding the connecting portion between the air supply pipe and the air diffusing element from above the tank to the plate-shaped U-shaped support portion of the support body.

Further, since the support member having the above-mentioned configuration is installed by fixing the seat plate portion to the side wall surface of the processing tank, the space between the side wall surface and the connecting portion supported by the support portion of the support member is set to the tank bottom. Not only can it be determined irrespective of the horizontal width of the inclined surface of the corner portion, but also the attached portion can be displaced back and forth with respect to the attaching portion to adjust the interval. In addition, since the support portion has a plate-like U-shape, the predetermined width portion of the connecting portion is supported by the support portion in a fitting manner, and lateral shake of the air diffusing element is suppressed.

[Embodiment] FIG. 1 shows a state in which a connecting portion between an air supply pipe 51 and an air diffusing element E of an air diffusing pipe 5 is supported by a support 1 fixed to a side wall surface A ₃ of a treatment tank A such as an aeration tank. Shows.

As shown in FIGS. 2, 3, and 4, the support 1 has a mounting member 2 and a support body 3.

The mounting member 2 is a seat plate portion 21 fixed to the lower portion of the side wall surface A ₃ of the processing tank A by using fasteners 4 such as anchor bolts (not shown).
A mounting portion 23 having a narrow recessed portion 22 whose lower surface and front surface are opened is provided in a protruding manner, and a guide portion 24 extending obliquely downward from the seat plate portion 21 is formed at the upper end of the mounting portion 23. A required number of insertion holes 25 for the mounting bolts 61 are formed on the left and right side walls of the mounting portion 23.

The support body 3 is provided with a U-shaped support portion 32 at the tip of a plate-shaped attached portion 31, and the attached portion 31 has a thickness such that the attached portion 31 can be slidably fitted into the recessed portion 22 of the attachment member 2. With
The upper end surface 31a is inclined at the same slope as the upper wall surface of the guide portion 24 and the recessed portion 22. Further, the attached portion 31 is formed with a long hole 33 parallel to the upper end surface 31a. Support part 32
Is formed in a plate shape having a width equal to that of the guide portion 24, and the lower half portion of the support portion 32 is equal to or close to the curvature of the outer peripheral lower half surface of the joint 52 connected to the lower end of the air supply pipe 51. It has an arcuate surface 32a with a curvature.

The mounted portion 31 of the support body 3 is fitted into the recessed portion 22 of the mounting member 2, and both are mounted by the mounting bolt 61 inserted into the insertion hole 25 and the long hole 33 and the nut 62 screwed into the mounting bolt. To be

The mounting member 2 and the support body 3 described above can be easily manufactured by integrally molding a synthetic resin such as polypropylene resin, and the support 1 thus manufactured has no risk of rusting and chemical resistance. Therefore, even if it is installed in, for example, a sewage treatment aeration tank, a good use condition can be obtained for a long period of time. Of course, the mounting member 2 and the support body 3 may be made of metal such as stainless steel or iron.
In the illustrated example, the mounting portion 31 of the support body 3 is fitted into the recessed portion 22 of the mounting member 2. However, the mounting member 2 is formed in a simple plate shape, and such a plate-shaped mounting member 2 Alternatively, the attached portion 31 of the support body 3 may be overlapped with each other to couple the both so as to be displaceable back and forth.

When installing the air diffuser pipe 5 that has been pulled out of the tank for maintenance or the like, for example, the connection portion between the air supply pipe 51 and the air diffuser element E, that is, the joint 52 is rubbed against the side wall surface A ₃ of the processing tank A. The air supply pipe 51 is hung from above the tank while arranging along an appropriate method. By doing so, the joint 52 is attached to the side wall surface A ₃
When it reaches the lower part of the, from the side wall surface A ₃ to the guide portion 24 of the support 1 as shown by the phantom line in FIG.
The joint 52 is guided by the guide portion 24 and the plate-shaped U-shaped support portion 32 is provided.
The lower half outer peripheral surface of the joint 52 is supported over a predetermined width by the arcuate surface 32a of the support portion 32 having a width L (see FIG. 4).

When the joint 52 is supported by the support portion 32 in the above-described state, lateral shake of the air diffusing element E is unlikely to occur during operation of the air diffusing pipe 5. Therefore, the air supply pipe 51 is not required to have so much strength, and in the past, the air supply pipe 51, which had been forced to use a high-strength steel pipe, should be replaced with an inexpensive resin pipe such as a vinyl chloride resin pipe, which is not so strong. There is an advantage that you will be able to. Such a lateral shake preventing action by the support portion 32 makes the curvature of the arc surface 32a slightly smaller than the curvature of the lower half outer peripheral surface of the joint 52 so that the joint portion 52 is elastically held by the support portion 32. If it is set, it will be more prominent. Further, the distance H between the air diffusing element E of the air diffusing tube 5 supported by the supporting portion 32 and the side wall surface A ₃ of the processing tank A in the above state is the same as the distance between the seat plate portion 21 and the center of the supporting portion 32. Is. Therefore, the protrusion width of the supporting portion 32 from the mounting member 2 is appropriately set so that the distance between the seat plate portion 21 and the center of the supporting portion 32 is shorter than the horizontal width h of the inclined surface A ₂ of the tank bottom corner portion. Then, the air diffusing element E is installed above the inclined surface A ₂ as shown in FIG. 1, so that the air diffusing element E and the side wall surface A ₃
The interval between and becomes narrower, and wasteful convection of treated water between them is suppressed. Further, by adjusting the protrusion width, it is also possible to adjust the installation position of the air diffusion element E in relation to the contact plate P and the side wall surface A ₃ .

By the way, since the air diffuser element E is installed at the bottom of the processing tank A, when the vertical width t of the inclined surface A ₂ at the corner of the tank bottom is relatively long, the fixing position of the support 1 is set to that position. There is no choice but to have a relatively high position commensurate with the vertical width t. In such a case, in order to bring the installation height of the air diffuser element E close to the bottom surface A ₁ of the processing tank A, as shown in FIG. 3, a seat is provided at the bottom of the mounting member 2 or the mounting portion 31 of the support body 3. It is effective to narrow the interval T between the lowest point of the circular arc surface 32a of the support portion 32 and the lower end of the seat plate portion 21 by providing a gradient θ that becomes higher as it gets closer to the plate 21.

The elongated hole 33 of the attached portion 31 may be formed horizontally, and in that case, the height of the support portion 32 does not change even if the protrusion width of the support portion 32 from the attachment member 2 is adjusted. . The adjustment of the protrusion width is performed by loosening the mounting bolt 61.

The diffusing element E is not limited to the straight shape as shown in the drawing, but may be a drum type, or a plurality of diffusing elements may be connected by pipes or joints and arranged in a staggered pattern.
Various known shapes such as those arranged in a shape can be used. Further, the shape of the connecting portion between the air supply pipe and the air diffusing element is not limited to the T-shape shown. For example, if the shape is bent in a U shape so that the direction of the bent portion can be changed, the diffuser element can be changed from the side wall surface of the processing tank to which the seat plate of the support is fixed by changing the direction of the bent portion. It can be moved away or closer. Further, a joint having a pair of left and right arm portions may be connected to the lower end of the air supply pipe, the arm portions may be supported by the support portions of the pair of left and right support bodies, and the air diffusion element may be connected to the joint.

[Advantage of the Invention] According to the present invention, when the air supply pipe of the air diffusing pipe is hung from the tank, the connecting portion between the air supplying pipe and the air diffusing element is arranged along the side wall surface of the processing tank and the guide portion of the support. The connection part is simply inserted into the plate-shaped U-shaped support part of the support body to be supported, so that the treated water (treatment liquid) such as sewage is treated in the treatment tank.
There is an effect that the above-mentioned connecting portion can be surely supported by the support even when the water is stored and the support is difficult to see. Moreover, since the support is installed on the side wall surface of the processing tank, the aeration element should be installed closer to the side wall surface of the processing tank than the dimension corresponding to the horizontal width of the inclined surface of the tank bottom corner, It becomes possible to adjust the installation position of the air diffusing element back and forth in relation to the plate and the side wall surface of the processing tank, and by doing so, the distance between the air diffusing element and the side wall surface is narrowed and the treatment between them is performed. It becomes possible to suppress wasteful convection of water to improve the aeration effect and to effectively control the convection area of treated water. In addition, lateral shake of the air diffuser is suppressed and the supporting state of the connecting portion by the support is stabilized, which helps to further improve the aeration effect described above, and at the same time, the air supply pipe is required to be so strong. It becomes possible to use inexpensive resin pipes.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which a connecting portion between an air supply pipe and an air diffusing element is supported by a support, FIG. 2 is an exploded perspective view of the support, and FIG. 3 is an enlarged view of a main part of FIG. FIG. 4 is a front view of the support, FIG. 5 is an explanatory view of a conventional example, and FIG. 6 is an enlarged perspective view of a main part of the conventional example. 1 ... Support, 2 ... Mounting member, 3 ... Support body, 21
…… Seat plate, 23 …… Mounting part, 24 …… Guide part, 31 …… Mounted part, 32 …… Supporting part, 51 …… Air supply pipe, 52 …… Coupling, A
…… Processing tank, A ₃ …… Sidewall surface, E …… Aeration element.

Claims (1)

[Scope of utility model registration request] 1. A mounting member in which a mounting portion is provided on a seat plate portion fixed to a side wall surface of a processing tank, and a guide portion extending obliquely downward from the seat plate portion is formed at an upper end of the mounting portion. A plate-shaped U-shaped support portion for fittingly holding the joint portion at the lower end of the air supply pipe to which the air diffusing element is connected is extended at the tip of the attached portion that is attached to the attachment portion so as to be displaceable in the longitudinal direction. A support body for an air diffuser, comprising: a support body.