JP2507650Y2 - Septic tank - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a septic tank, and more particularly to a septic tank characterized by an air diffuser.

[Problems to be Solved by Prior Art and Invention] In a septic tank, an air diffuser formed by connecting an air supply part to an air ejection part made of a porous tube is immersed in the liquid in the aeration chamber, More air is ejected to aerate and stir the liquid.

At this time, in order to effectively aerate and agitate the liquid, the length of the air jetting portion made of a porous tube should be increased and the air should be jetted uniformly from each portion of the air jetting portion. is necessary.

As the air diffusing pipe, an L-shaped air diffusing pipe 100 shown in FIG. 2 (A), that is, a form in which an air feeding unit 104 is connected to one end of an air jetting unit 102 has been used. In the case of the air diffuser of this form, there is a problem that the air is preferentially ejected from the tip portion of the air ejecting portion 102. In order to solve this, as shown in (b), the air ejecting portion The tip of the air supply unit 104 is connected to the center of the air supply unit 102 to form the air diffuser 106 into a T-shape. In this case, air can be evenly ejected from each part of the air ejection unit 102.

However, when the air diffuser is T-shaped in this way, the following problems occur. It is necessary to take out the air diffuser immersed in the liquid to the outside of the tank and perform maintenance such as removal of clogging and cleaning. At that time, if the air diffuser is L-shaped as shown in FIG. As shown in FIG. 2), two air diffusers 100 are associated with one manhole port, and two air diffusers 100 are connected through the same manhole port.
Can be loaded and unloaded. This is because, when the air diffuser 100 is loaded / unloaded, the air jetting part 102 can be vertically taken out from the manhole opening and loaded by tilting the air diffusing pipe 100 obliquely at the base portion of the air feeding part 104.

However, when the air diffuser is T-shaped, (C)
As shown in FIG. 3, only one diffusing tube 106 can correspond to one manhole port. This is because the air diffuser 106 cannot be loaded or unloaded unless this is done.

If one manhole corresponds to one air diffuser, the number of manholes increases, and the strength of the tank main body is weakened accordingly, and the structure of the tank main body is complicated. And the productivity deteriorates.

Since the size of each manhole must be increased, this also causes a decrease in the strength of the tank body.

[0009]

The present invention has been made in order to solve such a problem, and the gist thereof is to connect the tip of an air supply section to an air ejection section made of a porous tube. In a septic tank configured to immerse an air diffuser in the liquid in the aeration chamber for aeration, the tip of the air supply unit is connected to the center of the air ejection unit in a T-shape, and a portion in the vicinity of the connection unit Then, after bending the air supply part in a direction parallel to the air ejection part and extending it to the vicinity of one end part of the air ejection part, the air supply part is bent in a direction perpendicular to the air ejection part.

[Operation and Effect of Invention] The air diffuser of the present invention has a shape similar to an L-shape as a whole, although the air supply section is connected to the center of the air ejection section. . Therefore, as in the case of the L-shaped air diffusing tube of FIG. 2 (A) described above, two air diffusing tubes can be associated with one manhole port, and the number of manholes can be reduced, and the tank body It is possible to improve the strength of the tank and simplify the structure of the tank body to improve the manufacturability.

Further, the size of one manhole can be reduced to almost the same size as in the case of using the L-shaped air diffuser.

In addition, in the air diffuser of the present invention, since the air feeding part is connected to the central part of the air jetting part, air can be jetted out uniformly from each part of the air jetting part, and the liquid is aerated and stirred. Can be done effectively.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, 10 is a septic tank, and 12 is a diffuser tube immersed in the liquid in the aeration chamber.

The air diffuser 12 has an air blower 16 connected to the center of an air blower 14 made of a porous tube, and the air blower 16 is bent near the connection to the air blower 14. And extends in parallel to one end portion of the air ejecting portion 14, and is bent again at a right angle to the air ejecting portion 14 and in the opposite direction. That is, the air diffuser 12 has a shape similar to the L shape as a whole.

In the case of the air diffusing tube 12 of the present example, since it is L-shaped as a whole, one manhole port 18 can correspond to two air diffusing tubes 12. That is, the two diffusers 12 can be loaded or unloaded through one manhole port 18.

Therefore, the number of manhole ports can be reduced in the entire septic tank, the strength of the septic tank main body can be improved, and the structure of the septic tank main body can be simplified to facilitate manufacturing.

Further, the size of one manhole port 18 can be small. This is because, in the case of this air diffuser 12, it is possible to pull up the air supply part 16 and then tilt it at the bent part so that the tip end part can be taken out from the manhole port 18 in the vertical direction.

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in a form in which various modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the invention. Is.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part inside a septic tank according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram for explaining the background of the present invention.

[Explanation of symbols]

 10 Septic tank 12 Air diffuser 14 Air jet 16 Air supply

Claims (1)

(57) [Scope of utility model registration request] 1. A septic tank configured to immerse an aeration pipe, which is formed by connecting an end of an air supply section to an air ejection section made of a porous tube, into a liquid in an aeration chamber for aeration, The tip was connected to the center of the air ejection part in a T-shape, and the air supply part was bent in the direction near the connection part in a direction parallel to the air ejection part and extended to the vicinity of one end part of the air ejection part. After that, the septic tank is characterized in that the air supply part is bent in a direction perpendicular to the air ejection part.