JPH1066990A - Flow rate regulating device of sewage treating vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flow rate regulating device for a sewage treating vessel with which adjustment work is easy. SOLUTION: This device has an inflow port 1 and an outflow port 2 and is formed with a partition wall 4 having an overflow weir therebetween. A notched part is formed at a vessel wall 3 having the inflow port 1 and the partition wall 4 formed with the overflow weir. This vessel wall 3 is provided freely slidably with a cover 5 having an intersection plane 8 intersecting with the notched part of the vessel wall 3. The volume of the return water overflowing from the intersecting part 6 formed by the intersection of the notched part with the intersecting surface is regulated by sliding of this cover 5, by which the volume of the transfer water to be transferred from the outflow port 2 by flowing over the overflow weir of the partition wall 4 is regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate adjusting device for adjusting an amount of transferred water in a sewage treatment tank.

[0002]

2. Description of the Related Art Conventionally, in order to remove sludge and nitrogen, a certain amount of wastewater from a contact tank is transferred to a sedimentation / separation layer. An example is the sewage treatment tank shown in FIG. In FIG. 5, 101 is an inflow pipe, 102 is a baffle, 103 and 104 are sedimentation and separation tanks, 105 is a contact tank, 106 is an air pipe, 107 is a sedimentation tank, 108 is a disinfection tank, and 109 is a discharge pipe. In this sewage treatment tank, sewage in the contact tank 105 is pumped up by an air lift pipe 110 and transferred to a baffle 102 and a sedimentation separation tank 103 through a transfer pipe 111. In this case, it is necessary to adjust the amount of sewage transferred by the transfer pipe 111, and the flow rate adjusting device shown in FIG. 6 is used. This flow control device has 11
Numeral 0 denotes an air lift pipe, 111 denotes a transfer pipe, and 112 denotes a water level adjusting plate. The water level adjusting plate 112 is moved up and down to adjust the amount of water flowing over the overflow weir 113.

[0003]

However, in this conventional flow rate adjusting device, the height of the water level adjusting plate 112 is harder to see than the manhole, and the water level adjusting plate 112 is hard to see.
There was a case where the operation was troublesome because the adjustment of was up and down.

[0004]

According to a first aspect of the present invention, there is provided a flow rate control device for a sewage treatment tank, wherein a partition wall having an inlet and an outlet and having an overflow at an intermediate portion thereof is formed, and the flow is controlled. A notch is formed in a container wall having a partition wall formed with an inlet and an overflow weir, and a cover body having an intersecting surface intersecting the notch of the container wall is slidably provided on the container wall. Adjusting the amount of water transferred from the outlet through the overflow weir formed on the partition wall by adjusting the amount of return water that overflows from the intersection at the intersection of the notch and the intersection surface due to sliding. It is characterized by the following.

According to a second aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank, wherein a partition wall having an inlet and an outlet and having an overflow at an intermediate portion thereof is formed, and the inlet and the overflow are formed. A narrow bottom notch having a slope is formed in the container wall having the formed partition wall, and a cover body having a crossing surface intersecting the narrow bottom notch having the slope of the container wall in the container wall is slidable. The cover is moved from the outlet by adjusting the amount of return water flowing over the intersection due to the intersection of the slope of the narrow notch at the bottom of the container wall and the intersection of the cover by sliding of the cover. It is characterized in that the amount of transferred water is adjusted.

According to a third aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank according to the second aspect, wherein a plurality of the flow rate adjusting devices are provided on one of an outer surface of a vessel wall and an inner surface of a cover body. And a convex portion is formed on the other side, and the cover body is fixed by the engagement between the fitting and locking portion and the convex portion.

According to a fourth aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank according to the second aspect, wherein a handle is formed on a cover body. It is.

[0008]

1 and 2 show an embodiment of the present invention, wherein 1 is an inlet formed by an air lift tube, 2 is an outlet, 3 is a wall, and 4 has an overflow weir. Partition wall, 5
Is a cover body, 6 is an intersecting portion, 7 is a slope forming a narrow bottom cutout, 8 is an intersecting surface of the cover body 5, 9 is a fitting engagement portion, 10
Is a convex portion, and FIG. 2 is a sectional view taken along line XX of FIG.

The flow rate adjusting device for the sewage treatment tank is provided with a cover.
A body 5 is slidably provided on the wall 3. Vessel wall 3
Is formed with a narrow bottom notch, and the slope 7 of the narrow bottom notch intersects with the intersection 8 of the cover body 5. The intersecting surface 8 of the cover body 5 is formed by a facing slope facing the slope 7 of the narrow notch. A fitting locking portion 9 is formed on the upper surface of the container wall 3, and a convex portion 10 is formed on the inner surface of the cover body 5.
Are formed. The cover body 5 is provided on the container wall 3 so as to be freely slidable, but the cover body 5 is fixed at that position by locking the fitting locking portion 9 and the convex portion 10 at a predetermined position. The position of the cover body 5 does not shift due to vibration, vibration or the like.

In order to adjust the flow rate using the flow rate adjusting device of the sewage treatment tank, the cover body 5 is slid and the slope 7 of the narrow notch of the container wall 3 intersects the cover body 5. The degree of intersection of the intersection 6 with the surface 8 is adjusted. The height of the intersection 6 is adjusted according to the degree of intersection, and when the height of the intersection 6 is high, the amount of transported water flowing out of the outlet 2 over the overflow weir of the partition wall 4 increases. Further, when the height of the intersection 6 is low, the amount of water returned from the intersection 6 increases, and the amount of water transferred from the outlet 2 decreases. In this case, the intersection 8 of the cover body 5 is formed on the opposite slope facing the slope 7 of the narrow bottom cutout of the container wall 3.
, The height of the intersection 6 can be easily adjusted.

FIG. 3 shows another embodiment of the present invention, in which a handle 11 is attached to a cover body 5, and
The intersection plane 8 of the cover body 5 is formed as a vertical plane. In this flow control device for a sewage treatment tank, the cover body 5 can be slid with the handle 11.

FIG. 4 shows a still further embodiment of the present invention, in which a concave groove is formed in the vessel wall 3 and a floating bar 12 is provided in the concave groove. The scale 13 on the slope 7 of the wall 3 can be easily known.

[0013]

According to the first aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank, wherein a partition wall having an inlet and an outlet and having an overflow weir is formed at an intermediate portion between the inlet and the outlet. Forming a notch in the vessel wall having a partition wall forming a cough,
A cover having an intersecting surface intersecting the notch in the container wall;
The body is slidable, and the amount of water that flows back from the intersection is adjusted by sliding the cover body at the intersection of the notch and the intersection to adjust the amount of water transferred over the overflow weir of the partition wall. For this purpose, the cover body may be slid in the horizontal direction, so that the adjustment operation is easy.

According to a second aspect of the present invention, there is provided a flow control device for a sewage treatment tank, wherein a partition wall having an inlet and an outlet and having an overflow at an intermediate portion thereof is formed, and the inlet and the overflow are formed. A narrow bottom notch having a slope is formed in the container wall having the formed partition wall, and a cover body having a crossing surface intersecting the narrow bottom notch having the slope of the container wall in the container wall is slidable. At the intersection of the slope of the narrow notch at the bottom of the vessel wall and the intersection of the cover body by sliding of the cover body to adjust the amount of water returned from the intersection to control the overflow of the partition wall. Since the amount of transfer water that overflows is adjusted, the adjustment work is easy and the height of the intersection can be appropriately adjusted.

According to a third aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank according to the second aspect, wherein a plurality of the flow rate adjusting devices are provided on one of an outer surface of a vessel wall and an inner surface of a cover body. In order to fix the cover body by forming the fitting and locking part of the above and forming the convex part on the other side and locking the fitting and locking part and the convex part, the cover body does not move due to vibration or the like. Yes,
An appropriate position is maintained.

According to a fourth aspect of the present invention, there is provided a flow rate adjusting device for a sewage treatment tank according to the second aspect of the present invention, wherein a cover is formed on a cover body so that a cover is formed.
The body can be easily operated.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a flow rate adjusting device for a sewage treatment tank according to one embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of the embodiment shown in FIG.

FIG. 3 is an explanatory view of a flow rate adjusting device for a sewage treatment tank according to a different embodiment of the present invention.

FIG. 4 is an explanatory view of a flow rate adjusting device for a sewage treatment tank according to still another embodiment of the present invention.

FIG. 5 is an explanatory view showing a conventional sewage treatment tank.

FIG. 6 is an explanatory view of a conventional flow rate adjusting device for a sewage treatment tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inlet 2 Outlet 3 Container wall 4 Partition wall 5 Cover body 6 Intersection 7 Slope 8 Intersection

Claims (4)

[Claims] 1. A notch is formed in a vessel wall having an inflow port, an outflow port, and a partition wall having an overflow in an intermediate portion thereof, and a partition wall having an inflow port and an overflow crest.
A cover having an intersecting surface intersecting the notch in the container wall;
The body is slidably provided, and the amount of transport water flowing over the overflow wall of the partition wall is adjusted by sliding the cover body to adjust the amount of return water flowing from the intersection due to the intersection of the notch and the intersection. Flow control device for sewage treatment tank. 2. A narrow bottom wall having an inflow port, an outflow port, a partition wall having an overflow weir at an intermediate portion thereof, and a slope having a slope on a vessel wall having a partition wall having an inflow port and an overflow weir. A notch is formed, and a cover body having an intersecting surface intersecting the narrow notch having a slope of the container wall is slidably provided on the container wall, and the bottom of the container wall is narrowed by sliding of the cover body. The flow rate of the sewage treatment tank by adjusting the amount of water returned from the intersection due to the intersection of the slope of the notch and the intersection of the cover body, and the amount of water transported over the overflow of the partition wall Adjustment device. 3. A plurality of engaging and locking portions are formed on one of the outer surface of the container wall and the inner surface of the cover body, and a convex portion is formed on the other, so that the engaging and locking portion and the convex portion are locked. 3. The flow rate adjusting device for a sewage treatment tank according to claim 2, wherein the cover body is fixed by the step. 4. A cover formed with a handle on a cover body.
A flow control device for a sewage treatment tank according to the above.