JPS63394Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a water purification device aimed at efficiently purifying relatively shallow lakes, marshes, ponds, etc. by aeration and microbial treatment.

Conventionally, the intermittent aeration device of Patent No. 499563 has been used for aeration purification of relatively deep dams, lakes, etc.
Although it has been very effective, the efficiency of the device decreases when it comes to purifying relatively shallow lakes and marshes (for example, 5 m or less), and when the water becomes 3 m or less, it becomes unusable. However, although the intermittent aeration device has the advantage of increasing the amount of dissolved oxygen and homogenizing water quality through stirring, it is insufficient in reducing BOD. However, in this design, a microbial water purifier was installed obliquely on the outer wall of the upper end of the water pump, so the water rising in the water pump would flow into the water purifier, and the microbial water purifier was connected to the water suction pipe of the water pump. As a result, all the water rising in the water pump was forced to flow into the water purifier, making it possible to efficiently treat it with microorganisms.

Conventionally, an idea has been proposed in which a honeycomb core is arranged vertically over a predetermined area and a water pump is installed near the center of the honeycomb core, but in this idea,
It can be effectively used even in lakes, swamps, ponds, etc. where the water depth is relatively small, and the volume of the water purifier such as a honeycomb core can be increased arbitrarily. For example, if a honeycomb core, etc. is installed vertically in a lake or marsh with a small water depth (conventional studies have been done on installing honeycomb cores vertically), due to the water depth (for example, if the water depth is 2 m, the honeycomb core, etc.
Although the volume of honeycomb cores, etc. that can be effectively used is extremely limited, if microbial water purifiers are installed above and below as in this invention, theoretically the volume can be significantly reduced without being restricted by water depth. A long water purifier can be used.

That is, to explain this invention with reference to an embodiment (FIGS. 1 and 2), one end of the four water suction pipes 2 is connected to the lower side wall of the water pump 1, and the other end of the water suction pipe 2 is connected to the water bottom 3.
It is connected to one end of a microbial water purifier 4 placed horizontally through a funnel-shaped hollow part 5. This water purifier is constructed of a honeycomb core (for example, 10 mm to 30 mm cells), and can be formed to have an arbitrary length (for example, about 2 m to 6 m). An air chamber 6 is connected to the lower part of the water pump 1. The air chamber 6 has an inner cylinder 8 loosely fitted inside an outer cylinder 7, and the upper part of the inner cylinder 8 is connected to the water pump 1 through a closing plate 9.
A water pipe 10 is provided in the center of the closing plate 9 to communicate between the inside of the water pumping cylinder 1 and the inside of the inner cylinder 8, and the lower end of the water pipe 10 opens close to the bottom plate 11 of the inner cylinder 8. It has been done. In the figure, 12 is an air supply hose connected to the outer cylinder 7, 13 is a ventilation hole bored in the upper side wall of the inner cylinder 8, 14 is a bottom plate of the outer cylinder, 15 is a water hole provided in the bottom plate 14, 16 is a leg piece at the lower end of the outer cylinder, 17 is a stable plate in which the leg piece is embedded, and 18 is a communication hole between the water suction pipe 2 and the water lifting cylinder 1. On the other hand, four microbial water purifiers 19 made of honeycomb cores are installed on the upper outer wall of the water pump 1 so that water that rises inside the water pump 1 and is discharged from its upper end passes through the water pump 1 and as appropriate. The mounting rod 20 is installed obliquely at an angle of 45 degrees (for example, 45 degrees). The upper outer wall of the water pumping tube 1 has an edge attached to the upper end surface 21 of each of the microbial water purifiers 19.
A lower closing plate 23 connected to the lower edge 22 of is provided in a protruding manner. On the other hand, on the upper edge 24 of the upper end surface 21 of the microbial water purifier 19, upper blocking plates 25 each having a rectangular front surface are vertically protruded, so that the water rising in the water pumping cylinder can easily flow into the honeycomb core. It is set as.

In the above embodiment, when pressurized air is supplied from the air supply hose 12 as shown by the arrow 26, the water in the outer cylinder 7 and the inner cylinder 8 is expelled from the upper part, and the water level in the air chamber reaches the level shown by the arrow 27. The water level is the first
When the air in the inner cylinder 8 and the outer cylinder 7 reaches the position indicated by the chain line 28 in the figure, the air in the inner cylinder 8 and the outer cylinder 7 passes through the water pipe 10 and rises as shown by the arrow 29, forming a group (the chain line 3
0) Go up inside the water pump 1 as indicated by the arrow 31. Therefore, the water in the water suction pipe 2 is sucked into the water pumping cylinder 1 through the communication hole 18 as shown by the arrow 32. Therefore, water is absorbed from the outer end surface of the lower microbial water purifier 4 as shown by the arrow 33, passes through the honeycomb core 34 as shown by the arrow 35, reaches the hollow portion 5, and passes through the water suction pipe 2 as described above. Then, the water rises inside the water pump 1.
In the above, even if the rising flow velocity in the water pumping tube 1 is relatively high (for example, 2 m/sec or more), the flow velocity in the water purifier can be designed in advance to be moderate (for example, about 1 m/sec) due to the passage cross-sectional area. . The interval at which the air group rises in the above is designed in advance based on the water depth, air pressure, and volume of the air chamber, and is usually set at an interval of 3 to 8 seconds. The water that has risen through the water pump 1 as described above is blown out to the water surface as shown by arrows 36 and 37 and is aerated, and is absorbed from the outer end of the lower microbial water purifier 4, so that the water rises as shown by arrows 38 and 39.
Convection occurs as shown, and the water blown out from the upper end of the water pumping tube 1 descends in the honeycomb core of the upper microbial water purifier 19 as shown by the arrow 40. Therefore, the oxygen obtained through aeration mixes in the water, rapidly increasing the amount of dissolved oxygen, and making the water temperature uniform. Meanwhile, microorganisms adhere to the inner walls of the honeycomb core cells of the upper and lower microbial water purifiers, effectively processing and purifying the BOD in the flowing water.

In the above embodiment, the microbial water purifier was constructed with a honeycomb core, but the cross section of the water pipes is not limited to a hexagonal shape, and a large number of circular, rectangular, etc. water pipes may be arranged closely in parallel. . Further, according to the above embodiment, the lower closing plate 23 and the upper closing plate 2
5 is provided, it is possible to prevent the water blown out from the water pump 1 from escaping downward and upward without passing through the upper microbial water purifier 19. In addition, since the upper closing plate 25 is rectangular with gaps provided on both sides, a portion of the water blown out from the water pump 1 does not pass through the upper microbial water purifier 19 and convects widely as shown by arrows 41 and 42. water can be guided to the water purification device. Note that the lower closing plate 23 and the upper closing plate 25 do not necessarily need to be provided. Further, in the above embodiment, the water pumping cylinder is an intermittent aeration cylinder, but the structure of the water pumping cylinder is not limited to this.

Next, the embodiment shown in FIG. 3 shows an example of arrangement when the water depth is shallow (for example, 2 m or less). In such a case, a hole 43 of a predetermined depth (for example, 1 m or more) is provided at the bottom of the water to house an air chamber, and the water pressure in the air chamber is adjusted.
The weight was kept at 0.3Kg/cm2 or ^higher . Although the above effects can be achieved even if the water pressure difference between the water surface and the air chamber is small, the larger the water pressure difference, the greater the lifting force, so a water pressure difference of about 0.3 kg/cm ² or more is preferable. 44 in the figure is the water surface.

According to the above example, the upper water purifiers were installed so that they used the same water, had almost the same shape, and overlapped each other, but there were no limitations on the number or the installation condition, and they were installed so that they did not overlap each other and were different from each other. It is also possible to install several (for example, four lower water purifiers and five upper water purifiers).

In other words, according to this invention, since the microbial water purifier is connected to the water suction pipe installed at the lower end of the water pumping tube, most of the pumped water passes through the water purifier, and the water in the water is
BOD can be efficiently treated with microorganisms.

In addition, since the microbial water purifier is installed diagonally at the top of the water pump, the water can be treated with microorganisms twice during one cycle, achieving high treatment efficiency comparable to installing a long microbial water purifier. be able to.

It is also particularly effective for purifying places such as fish ponds, which are relatively shallow, contain a large amount of organic matter, and have conditions that degrade water quality, such as heating if necessary.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of this invention, FIG. 2 is a plan view, and FIG. 3 is a partially cutaway front view of another installation example. 1... Water pumping cylinder, 2... Water suction pipe, 4, 19... Water purifier, 6... Air chamber, 7... Outer cylinder, 8... Inner cylinder,
12...Air supply hose.

Claims (1)

[Claims for Utility Model Registration] 1. A lower microbial water purifier having a large number of small water passages is connected to the water suction pipe of the water pump, and the water raised by the water pump passes through the upper outer wall of the water pump. A water purification device consisting of a diagonally installed upper microbial water purifier with many small waterways. 2. The water purification device according to claim 1, wherein the water pumping cylinder is an intermittent aeration cylinder. 3. The water purification device according to claim 1, wherein the upper and lower microbial water purifiers are honeycomb cores. 4. The water purification device according to claim 1 or 3 of the utility model registration claim, wherein the upper and lower microbial water purifiers are arranged in a radial manner so that the same number of the upper and lower microbial water purifiers overlap or do not overlap.