JPH081038Y2 - Purified water outflow device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a purified water outflow device.

[Conventional technology]

For example, in an aeration tank (aeration tank), after injecting sewage, aeration is performed and scum accumulates on the water surface and sludge accumulates at the bottom. The water between the scum and the sludge becomes purified water, and this purified water is led out of the pond and used.

[Problems to be solved by the device]

By the way, there are many methods for deriving the purified water. For example, as an example, a pipe is provided in the pond, and a bellows-type pipe is guided upward from the pipe, and at the upper end of the pipe, there is a saucer that is always located slightly below the water surface and holds purified water. There is something. The saucer has a float that floats on the water surface and follows the water surface.

In addition, a rotary shaft that doubles as a pipe is provided below the water surface, and another pipe that rotates and communicates with the rotary shaft is provided so as to swing up and down, and at the upper end of the other pipe. For example, there is a water intake provided so that the water intake can always follow the water surface by a float.

However, these are inconvenient and expensive as a whole due to their complicated structure and difficult construction.

The present invention has been made in view of the above circumstances, and an object thereof is to make the structure simple and the construction easy, and to reduce the cost as a whole.

[Means for solving the problem]

In order to solve the above-mentioned problems, the invention according to claim 1 sets a horizontal axis-like rotation center between the upper and lower sides of a vertically oriented pond side wall, and mounts a fixed body along the surface of the pond side wall. It is assumed that the fixed body has a concentric surface around the rotation center, and at a position slightly apart from the side wall of the pond with respect to the fixed body, while forming a sealed space through which purified water flows with the side of the pond side. A rotating body that rotates concentrically with the center of rotation is provided close to the side wall of the pond, and a float that rotates the rotating body downward to follow the water surface in the pond on the outer peripheral portion of the rotating body. , A water intake port that is located slightly below the water surface that fluctuates by following the water surface of the float and that communicates with the space to introduce purified water is opened, and the rotating body has a water surface maximum water level when the water intake port is injecting sewage. Rotation return means to put it in the standby state After Rutotomoni injection being adapted to the water inlet is at the slightly lower than the water surface, the space faces the outlet of the water purification.

Further, in the invention described in claim 2, the water inlet is
The movement is adjustable with respect to the rotating body.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

1 and 2 show an embodiment of the present invention. The pond is provided with a bottom wall 1 and a side wall 2, and sewage is injected so that the water surface 3 comes to the extent shown in the figure. As described above, this wastewater is separated into bottom wastewater and top scum, and only the intermediate purified water is led out by the purified water outflow device.

The purified water outflow device is provided with a fixed body 4 on the inner surface of the side wall 2. The fixed body 4 has a circular ring shape and a substrate 4a positioned parallel to the side wall 2 and horizontal from the outer peripheral edge of the substrate 4a. And a projecting ring 4b projecting in the direction. The fixed body 4 has an opening at a wide central portion. On the outer peripheral surface of the protruding ring 4b of the fixed body 4, a pressing seal 5 is provided so as to cover the entire circumference. The fixed body 4 is fixed to the side wall 2 in a horizontal axis shape so that a part of its upper end is on the water surface 3, and its lower end is provided with an outlet pipe 6 for guiding purified water to the outside through the side wall 2. ing.

Inside the pond, a rotary shaft (rotation center) 10 protruding from the side wall 2 is provided so as to be located at the center of the fixed body 4 on the side wall 2. The rotary shaft 10 projects horizontally, and the rotary shaft 10 is provided with a nut 11, a washer 12, and the like. Rotating body
The nut 13 is rotatably provided on the rotary shaft 10 by a nut 11, a washer 12, and the like. The fixed body 4 is concentric with the rotation center.

The rotating body 13 has a concave surface 13a at the center and a ring-shaped outer peripheral portion 13b. The concave surface 13a is a point devised to increase the strength. The rotating body 13 is supported by the rotating shaft 10 so that the outer peripheral portion 13b fits around the outer periphery of the fixed body 4. The seal 5 prevents water from entering between the outer peripheral portion 13b and the fixed body 4. The fixed body 4 and the rotating body
A closed space 14 is formed between the space 13 and the space 13, and the space 14 is always in communication with the outlet pipe 6.

A float 16 that also serves as a weight is provided on the outer peripheral portion 13b of the rotating body 13. With respect to the receiving piece 15, on the Ikegami, a winch 19 that can be wound by a motor 18 or a cylinder or manually is provided,
The winch 19 has a chain 20 that can be wound and unwound freely. A weight 21 is attached to the lower end of the chain 20, and the receiving piece 15 of the weight 21 rides from above. Depending on the ride,
The rotating body 13 is rotated by about 45 ° so that the float 16 and the water intake port 22 opened near the float 16 are located above the water surface 3, and the receiving piece 15 is a stopper 23 protruding from the side wall 2.
It is supposed to be stopped by. This state is set when aeration is performed when the waste water is injected, which prevents water in the pond, particularly scum, from entering the space 14. The motor 18,
The chain 20, the weight 21, and the receiving piece 15 constitute rotation return means.

After aeration, the weight 21 is rolled up by the chain 20,
The rotating body 13 that has lost the weight 21 comes back to rotate in the direction of the arrow in FIG. The rotating body 13 after the rotation stops at the position shown by the solid line in the figure because the float 16 floats on the water surface 3.
At this time, the water intake port 22 is not at the same level as the water surface 3 but comes to about 15 cm below the water surface where the purified water is present. The outflow of purified water starts from this state.

The purified water introduced through the water suction port 22 is guided into the space 14, and flows out of the pond from the outlet pipe 6 through the space 14. At this time, the water suction port 22 descends together with the water surface 3 while always being located below the water surface 3, so that purified water can always flow in instead of scum. This is due to the action of float 16. The water surface 3 is gradually lowered due to the outflow of the purified water, and the float 16 is also lowered accordingly. The float 16 is stopped in the lower position by a stopper 24 protruding from the side wall 2. At the same time, the receiving piece 15 is positioned upward, and then the weight 21 is lowered into the receiving piece 15 to return the rotating body 13 in the direction opposite to the arrow. This operation is repeated.

The present invention is not limited to the above-mentioned embodiment, but may be in the following other modes.

The concave surface 13a may be a convex surface or a flat surface.

As shown in FIG. 3, the outlet pipe 30 may protrude downward from the fixed body 4 and extend in the horizontal direction. In this case, as shown in FIG. 5, the outlet pipe 30 is connected to the outflow pipes 31 ... Which communicate with a number of ponds through the side walls 2, 2 of the ponds, corresponding to the inside of the ponds.

As shown in FIG. 4, the rotary shaft 33 may be formed into a pipe shape, and the rotary shaft 33 may serve as a support for the rotary body 13 and guide the purified water to the outside through the holes 33a on the outer periphery of the coaxial shaft 33. .

As shown in FIG. 5, a device composed of a fixed body 35 and a rotary body 36 may be supported by a shaft 37 and arranged in the width direction of the pond. However, this embodiment is outside the scope of this invention.

As shown in FIGS. 6 and 7, the fixed body 39 and the rotary body 40 are both gutter-shaped and ring-shaped in cross section.
If these are combined to form a donut-shaped device that is composed of only the necessary parts, the cost will be reduced. The water inlet 42 provided below the float 41 is
You may open in the lower part of the pipe 44 provided in the front-end | tip of the pipe 43 which protrudes from the outer periphery of the rotary body 40. A plate 45 may be arranged above the pipe 44 to prevent invasion of scum.

As shown in FIG. 8, the float 47 may be adjusted up and down, or, as shown in FIG. 9, the water inlet 48 may be opened in an accessory plate 49 so that it can be moved and adjusted. .

FIG. 10 shows that the pattern attached to the concave surface is divided into a part 50 where algae is likely to adhere and a part 51 where it is difficult to attach, and the part 50 which is likely to adhere is an iron surface, and the part 51 which is difficult to attach is a copper surface. It is a thing. This makes it difficult to attach
51 can be expressed as a part of a dot-shaped character in the illustrated example. In addition, a scraper may be faced from the rotating body side to remove the algae with respect to the portion 51 to which adhesion is difficult.

As shown in FIG. 11, in the above-mentioned embodiment, one device having a large diameter was prepared, but one device may be constituted by combining two devices so as to be wrapped up and down. In this case, the upper rotor 53 and the lower rotor
54 and 54 must be linked to each other. This is done using a limit switch or the like. Rotating body is 2
Sometimes more than one.

12 to 15 show an additional embodiment, not based on the rotating body method.

In this embodiment, a slanted outflow pipe 60 is provided in the pond. The outflow pipe 60 has an upper end closed and a lower end communicating with the outside of the pond. The upper surface of the tube 60 is open, and a large number of cylinders 61 ... Are projected so as to correspond to the openings, and each upper end of the cylinder 61 is opened as a hole 62. A rotary shaft 63 is provided on the pond, and the coaxial 63 is rotated by a cylinder 68. This rotary shaft 63 has
A large number of hanging rods 64 project, and a chain 66 having a float 65 on the front side at the lower end is hung at each end of the hanging rod 64, and the lower end of the chain 66 is vertically moved in the tubular body 61. A ball 67 is provided so that it can also close the hole 62.

In the same example, at the time of injecting sewage and aeration,
The chain 66 is lifted by the pulling operation of the cylinder 68, and the balls 67 ... Close the holes 62. This allows
Sewage will not flow out through hole 62. When the water surface 69 becomes constant and the aeration ends, the cylinder 68 pushes in the opposite direction. This allows the highest float
65 has buoyancy but ball 67 follows hole 69
62 is opened, and buoyancy acts on the floats 65 ... of all the other holes 62 ..., and the holes 62 ... are kept closed. The uppermost hole 62 is in a state of inflowing purified water, and when the water surface 69 is lowered, the bottom surface closes the hole 62 so that the scum of the water surface 69 does not flow in. The float 65 adjacent to it closes the hole 62 due to buoyancy, but when the water surface 69 lowers to some extent, the hole 62 becomes open. As a result, purified water flows out through the adjacent holes 62, and then the holes 62 are closed by the float 65, whereby the inflow of scum is blocked. In this way, the operation of outflowing only purified water while sequentially preventing outflow of scum is repeated.

[Effect of device]

The present invention is as described above. Therefore, it is possible to provide a device that has a very simple structure and is easy to construct, and that is capable of extracting purified water inexpensively and reliably as a whole.

In particular, since the rotating body is close to the side wall of the pond, the swallowing condition of the purified water from the water intake can be tested from the pond even when testing after installation or in actual operation, and the inspection is reliable and safe. The adjustment after the inspection can be done easily and safely. According to the second aspect of the present invention, since the water suction port can be moved and adjusted with respect to the rotating body, the adjustment is convenient and safe.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is a longitudinal sectional view showing another embodiment.
FIG. 5 is a vertical sectional view showing another embodiment in which purified water is drawn out from the rotary shaft, FIG. 5 is a sectional view showing an additional example, FIG. 6 is a front view showing a donut-shaped device, and FIG. Is a longitudinal sectional view thereof, and FIGS. 8 and 9 are perspective views showing other embodiments.
FIG. 10 is a front view showing an embodiment in which a pattern or the like is attached to the surface of the rotating body, FIG. 11 is a front view showing another embodiment in which the device is provided in two upper and lower parts, and FIGS. 12 to 15 are additional implementations. An example, the 12th
The figure is a plan view of the apparatus, FIG. 13 is a longitudinal sectional view of the apparatus, and FIGS. 14 and 15 are operation explanatory views thereof. 4,39 …… Fixed body, 6,30 …… Outlet piping, 10,33 …… Rotary shaft (rotation center), 13,40,53,54 …… Rotary body, 14 …… Space, 1
6,41,47 …… Float, 22,42,48 …… Water inlet

Claims (2)

[Scope of utility model registration request] 1. A horizontal axis-shaped rotation center is set between the upper and lower sides of a vertically oriented pond side wall, and a fixed body is attached along the surface of the pond side wall, and the fixed body has a concentric surface around the rotation center. At a position slightly distant from the side wall of the pond from this fixed body, a rotating body that rotates concentrically with the rotation center is formed on the side wall of the pond while forming a sealed space where purified water flows between the fixed body and the side wall of the pond. A float that is provided close to the rotor and that rotates the rotor downward by following the water surface in the pond, and a position slightly below the water surface that fluctuates by following the water surface of the float. Then, a water intake opening that communicates with the space and introduces purified water is opened, and the rotating body is put in a standby state by a rotation returning means so that the water intake opening is above the maximum water level at the time of injecting dirty water. And the water inlet is higher than the water surface after injection. And it is adapted to come down,
A purified water outflow device with an outlet for purified water facing the space. 2. The purified water outflow device according to claim 1, wherein the water inlet is movable and adjustable with respect to the rotating body.