JPH0123592Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a circulation system using a water pump.
This invention relates to a water purification device whose purpose is to cause an equal amount of water to be treated to flow down into all the small tubes (hereinafter referred to as honeycomb cores) constituting a water purification member.

In conventional water purification devices in which a honeycomb core is installed on the outer periphery of a water pump, the water to be treated that is ejected from the water pump flows outward (in the direction away from the water pump) on the upper end surface of the honeycomb core, while each of the honeycomb cores is However, the static pressure at the upper end surface of the honeycomb core increases as the distance from the water pump increases, so the closer to the outer periphery of the honeycomb core, the greater the amount of water to be treated flows down into the cell, causing the honeycomb core to flow down. It was difficult to use all the cells uniformly, and this inevitably led to a decrease in efficiency. Therefore, the applicant first installed a guide plate at a predetermined distance above the water pump (Utility Application No. 57-127618).
(No.), which had a considerable effect on equalizing the flow rate, but it was still insufficient.

However, in this invention, an inverted funnel-shaped hollow cone is inserted between the upper end of the water pumping tube and the guide plate, so that the water to be treated spouted from the upper end of the water pumping tube is diverted onto the upper end surface of the honeycomb core. Since a downward flow force is applied, the water to be treated flows evenly into the honeycomb core located relatively close to the water pump, making it possible to flow down almost uniformly throughout, maximizing the water purification effect. was successful.

Next, this invention will be explained based on an embodiment shown in the drawings. In FIG. 1, a honeycomb core 2 is installed between the outer wall of the water pumping tube 1 and the side wall of the water tank 6, and an annular intermittent air supply device 3 is fitted and installed on the outside of the lower end of the water pumping tube 1. A planar circular guide plate 4 is installed above the water bottle 1 and facing the water bottle 1 at substantially the same height as the water surface P with a predetermined distance between the guide plate 4 and the upper end. An inverted funnel-shaped hollow truncated cone body 5 is installed between the guide plate 4 and the upper end of the water pumping tube 1. The intermittent air supply device 3 has an inner cylinder 7 fitted into the water pumping cylinder 1 at a predetermined interval therebetween, an outer cylinder 8 fitted into the inner cylinder 7 at a predetermined interval therefrom, and A partition cylinder 9 is installed between the inner and outer cylinders, a closing plate 10 is installed between the upper end of the partition cylinder 9 and the inner and outer cylinders, and a closing plate 10 is installed between the lower end of the partition cylinder 9 and the water pumping cylinder 1. It is constructed by installing a blocking plate 11. In addition, a plurality of through holes 12 and 13 are bored on the same circumference at a predetermined interval in the lower end of the inner cylinder 7 and in the upper part of the partition cylinder 9, respectively. Closure plate 1 provided between the upper end
4, a plurality of long holes 15 are provided in an annular shape.
In the figure, 16 is an air supply port.

Next, the guide plate 4 is a circular plate having a size that covers the central part of the honeycomb core 2 (to receive water blown up from the water pump). In addition, the hollow truncated cone 5 has, for example, an upper opening 5a having a diameter that is approximately the same as the inner diameter of the water pumping tube 1, a lower opening 5b that is approximately twice the inner diameter of the water pumping tube 1, and a height that is equal to the diameter of the upper opening. They shall be approximately the same and shall be made of synthetic resin or stainless steel. This hollow truncated cone body 5 is suspended from the guide plate 4 by a plurality of (four in this embodiment) radial partition plates 17,
The guide plate 4 is a cover plate 18 installed at the upper end of the water tank 6.
It is fixed by a suspension rod 19 to maintain an accurate gap between the upper end of the water pump 1 and the truncated cone 5.

In the above, air diffuser pipes 54 and 55 are laid horizontally in a grid pattern below the honeycomb core, and a large number of blowholes 56 are formed in each trachea. When oxygen is insufficient during water purification, the aeration pipe 5
Oxygen can be replenished by supplying pressurized air through the base pipe 57 connected to the gas nozzles 4 and 55 and blowing out air bubbles from the respective blowholes 56. In the figure, 58 is a water inflow hole, 59 is a drainage hole, and 60 is a waste hole.

Next, the operation of the apparatus shown in the above embodiment will be explained.
When pressurized air is supplied through the air supply port 16 as shown by the arrow 21, an air chamber 22 composed of the inner and outer cylinders 7 and 8
The water level inside is pushed down by the pressurized air and falls as shown by arrow 23. In this way, when the water level falls to the position indicated by the chain line 24, the air in the air chamber 22 is moved to the position indicated by the arrow 24.
5, it enters the water pumping tube 1 through the long hole 15, becomes an air mass 26, and rises inside the water pumping tube 1. air group 2
When the cylinder 6 rises, water is sucked into the air chamber 22 from the lower end of the outer cylinder 8 as shown by the arrow 27, and the above operation is repeated. Therefore, the water in the water pumping tube 1 rises as the air mass 26 rises, and the water in the water pumping tube 1 rises as the air mass 26 rises and reaches the upper end opening 28.
More gushes. The water to be treated spouted out here is guided by the hollow cone 5, and most of it passes through the upper opening of the hollow cone 5 as shown by the arrow 29, collides with the guide plate 4, and moves as shown by the arrow 30. Although it spreads radially, a part of the spouted water to be treated is diverted downward as shown by the arrow 20 by the hollow cone 5 and flows inside the honeycomb cell near the outer wall of the water pump 1 as shown by the arrow 31. It descends like this. Therefore, the amount of water flowing down in the vicinity of the water pump, where only a relatively small amount of water has conventionally flowed down, will increase. Furthermore, the water to be treated which has been given directionality by colliding with the guide plate 4 is also guided by the outer wall of the hollow cone 5, diffuses in the direction of the arrow 32, and is equally distributed into the near and far honeycomb cells. In the embodiment described above, there was only one hollow cone 5, but as shown in FIG. can.
In this case, four partition plates 36 and 37 can be installed radially and equally spaced in the gap of each hollow cone, and can be used both as dividing the gap and as a hanging material from the guide plate 4. . The gaps in the gap portion are not necessarily equally spaced, and are determined by taking into consideration the flow rate of the water to be treated. Further, in the embodiment shown in FIG. 4, a downward conical protrusion 38 is provided at the lower center of the guide plate 4, so that the direction of the water spouted up as shown by the arrow 39 is smoothly changed as shown by the arrow 40. Then, determine the curved surface angle of the protrusion by considering the angle at which the descending force is applied. 4 in the diagram
1 and 42 are hollow cones, and 43 is a partition plate that also serves as a hanging member. Although each of the hollow cones in the above embodiments has a truncated cone shape, it may also have a shape in which a through hole is provided at the top of a dome-shaped cap body. In addition, when multiple hollow cones are integrated, there is a difference in height between the upper edges (for example, the upper edge of the central cone is lower and the upper edge of the outer cone is higher).
can also be given. Next, the differences in the flow direction of water flow between this invention and the conventional structure are shown in Figures 5 to 7.
The explanation will be explained with reference to the drawings.

That is, FIG. 5 shows the case of this invention, in which the water to be treated that has risen in the water pumping tube 1 as shown by the arrow 44 is blown up as shown by the arrow 45, and a part of the spouted water is It descends as shown by arrow 46, flows backward as shown by arrow 51 toward the vicinity of the outer wall of water pumping cylinder 1, and the other part diffuses in all directions as shown by arrow 47. Furthermore, Fig. 6 shows the case of a device related to the earlier application of this device, in which the water to be treated that rises as shown by arrow 44 in the pumping tube 1 is blown up as shown by arrow 45, and most of the water rises as shown by arrow 45. diffuses in all directions as shown by arrow 48. In this case, some amount of water that is blown up is returned downward as shown by arrow 52, but a portion very close to the outer wall of water pump 1 causes a slow downward flow as shown by arrow 49. Next, FIG. 7 shows a conventionally known device,
Since there is no guide plate, follow the arrow 44 inside the pumping cylinder 1.
When the water rises as indicated by arrow 45 and is ejected as indicated by arrow 45, an upward flow as indicated by arrow 50 is generated in the honeycomb cells near the outer wall of water pumping tube 1, and it also diffuses as indicated by arrow 53. However, if the ejection force is strong, the range of influence of the upward flow will be large, and there is a risk that the purification efficiency will be reduced accordingly.

That is, according to this invention, a guide plate is installed above the pumping tube, a hollow cone is interposed between the guide plate and the end of the pumping tube, and a partition plate is provided, so that the water sprayed from the pumping tube end is This has the effect of imparting a flow force in the opposite direction to a portion of the water to be treated, causing as much flow as possible within the honeycomb cells near the outer wall of the water pumping tube, and fully demonstrating the water purification ability of the honeycomb core. Therefore, the number, gap size and angle of hollow cones (which can be made into pyramids if necessary) are selected according to the outer diameter of the pumping tube, the amount of ejection, the area and shape of the upper end of the honeycomb core, etc.
By making the water to be treated flow uniformly throughout the honeycomb cells, water purification efficiency can be maintained at the highest level, and the effect of equalizing the degree of aging of microbial membranes and the degree of cleaning required within the honeycomb cells. There is.
Also, since the aquarium mouth is covered, the light rays are blocked,
It is possible to prevent the growth of algae. Furthermore, since the field water is intermittently accelerated, unlike a steady flow, it has the effect of stimulating the microbial film and improving the contact state.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional front view of an embodiment of this invention, Figure 2
The figure is a cross-sectional view of the hollow cone with a part omitted near the top, FIG. 3 is a perspective view of another embodiment of the hollow cone, and FIG. 4 is a cross-section showing another embodiment of the guide plate. 5 to 7 are comparative illustrations of the water flow conditions of this invention and the conventional device. 1... Water pumping cylinder, 2... Honeycomb core, 3... Intermittent air device, 4... Guide plate, 5... Hollow cone,
6...Aquarium.

Claims (1)

[Scope of claim for utility model registration] 1. An intermittent air pump installed in the center of the aquarium,
In a device in which a water purification member composed of a large number of small tubes is installed vertically between a water tank and a water tank, a guide plate is installed above the water pumping tube at a predetermined interval, and a guide plate is installed between the upper end of the water pumping tube and the guide plate. An inverted funnel-shaped hollow cone with an open center part is interposed between the guide plate and the guide plate at a predetermined interval vertically, and the guide plate and the hollow cone are separated by a radial partition plate,
The water purification device includes a lid plate placed over the water tank, the guide plate provided substantially near the water surface, and an aeration pipe provided below the water purification member. 2. The water purification device according to claim 1, wherein one or more hollow cones are stacked concentrically at predetermined intervals inside and outside. 3. The water purification device according to claim 1, wherein the diameter of the upper part of the hollow cone is equal to or larger than the inner diameter of the water pumping cylinder. 4. The water purification device according to claim 2, wherein the gap between the plurality of hollow truncated cones is divided into a plurality of equal parts parallel to the slopes of the cones.