JPH11132200A - Constant water level feeding/discharging device for plural-step water tank, and circulating biotope water system device for plural-step water tank using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control feeding water, maintain water level, and improve water quality in a plural-step water tank group only by using water feeding energy of a single feeding pump. SOLUTION: This device is constituted such that a water tank group with plural- steps is placed by communicating mutual water tanks through siphon tubes 2, water is fed to the first step's water tank 1b through a venturi tube 3, and water is discharged from the final step's water tank 1e through the siphon tubes 2. An inlet 21 of each siphon tubes 2 is arranged near the bottom of the water tank, a ventilating hole 23 is formed on the tube side of the inlet 21 side corresponding to a desired water tank level, the top space of each siphon tube 2 is communicated with a throat part space of the venturi tube 3 through a water seal space in a communicating branch tube placed on a water surface. In addition, by performing water feeding to the first step's water tank 1b using a feeding means 5 from a water storage tank 4 on which the communicating branch tube 9 is placed, and by returning discharged water form the final step's water tank 1e to the water storage tank 4, a circulating water system is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant water level water supply / drainage device for a multistage water tank for supplying / draining water in a water tank arranged in a plurality of stages with only a single water supply means while maintaining a constant water level. The present invention relates to a biotope circulating water system having a multi-stage water tank using such a device.

[0002]

BACKGROUND OF THE INVENTION The technology pursuing functionality and efficiency, and the economic view that supports it, have achieved phenomenal economic development after the war, but on the other hand, the life forms necessary for humans to enrich their hearts Interest in coexistence and its protection had been neglected.

[0003] In light of these reflections, in recent years, the concept of "biotope" has been proposed in which the term "biotope" is derived from the combination of "bio" meaning living things and "tope" meaning places. This biotope means a cohesive environmental space with an established ecosystem where wildlife can sustainably inhabit.From this perspective, ecosystems are considered in the design of river coastal environments, expressway interchanges and parks, Attempts have been made to create plants, streams, ponds, wetlands, and woodlands.

[0004] As described above, the realization of a biotope is originally a large-scale one. However, from the viewpoint of the biotope, the present invention creates a rich natural activity in a familiar living space. A constant-level water supply / drainage device of a multi-stage water tank for providing moisture in daily life and a biotope water system of a multi-stage water tank using the same are disclosed.

[0005]

Means for Solving the Problems The present invention is configured as follows to achieve the above object. That is, a configuration in which water tanks are communicated with each other by siphon pipes and a plurality of water tank groups are arranged, water is supplied to the first water tank through a venturi pipe, and water is drained from the last water tank through a siphon pipe. In each of the siphon pipes, a water inlet is arranged near the bottom of the water tank, and a vent hole is formed on the pipe side on the water inlet side in accordance with a desired water tank water level, and a top space of each of the siphon pipes and the venturi pipe are formed. The throat portion space is characterized by being communicated via a water seal space in a communication branch pipe arranged on the water surface.

Further, as a structure in which the function of the vent hole is assigned to the water inlet, the air hole of each of the siphon pipes may be omitted, and the water inlet may be arranged in accordance with a desired tank water level. Further, the water supply to the first-stage water tank was performed using a water supply means from a water storage tank in which the communication branch pipe was arranged, and the drainage from the last-stage water tank was returned to the water storage tank to form a circulating water system. Features.

Next, the biotope circulating water system of the multistage water tank uses the constant water level water supply / drainage device of the multistage water tank configured as described above, and drains water from the final stage water tank to the water storage tank via the natural purification environment waterway. It is configured to regress.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the present invention having the above configuration will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing the entire configuration of the present embodiment, and FIGS. 2 to 4 are cross-sectional views showing the main parts thereof in an enlarged manner.

A plurality of (four in this embodiment) water tanks 1 ("water tank group") are arranged in a substantially stepped manner, and a predetermined amount of water is put into each of the water tanks 1, 1,. A suitable number of schools of fish and aquatic animals are released for breeding or appreciation purposes. Between adjacent water tanks 1, siphon pipes 2 that communicate with each other in the water tanks 1 are arranged so as to span. The water inlet side 21 (on the left side in the drawing) is located near the bottom of one of the water tanks 1, and the water outlet side 22 is provided with a water outlet 22h in the other water tank at a position where water can be sealed even if the water level changes. Are arranged. Further, on the tube side of the siphon tube 2 located in the water tank 1 on one side, a ventilation hole 23 penetrating through the inside and outside of the tube is formed at a position corresponding to a desired water tank water level. Further, the bent top 2 of the siphon tube 2
A connection port 25 for connecting the top space 24s to the outside is formed and arranged on the tube side of No. 4.

The water tank 1b at the first stage (left end in the drawing) is supplied with water via a venturi tube 3, and this water is supplied by a water pump 5 from water stored in a water storage tank 44. On the other hand, water is drained from the water tank 1e at the last stage (right end in the drawing) by the same siphon pipe 2e as described above.

This drainage is discharged to the upstream side of a water channel in which the natural purification environment water channel 6 is artificially constructed. This natural purification environment waterway 6 is a part of realizing a biotope water system, and forms a flow path of a certain distance, and in the middle thereof, debris 61, algae, water plants, etc.
An aqueous plant 62 such as a reed is arranged, and the entire waterway constitutes an environment where sunlight is irradiated. By the natural purification environment water channel 6, the wastewater is purified by a natural purification action by the action of bacteria and the like that inhabit the hair roots and reeds of soil and water plants.

On the downstream side of the natural purification environment waterway 6,
A small waterfall 63 having a certain head is arranged, and the water is discharged into the water storage tank 4 from the air, whereby oxygen is taken into the water together with stirring to increase the amount of dissolved oxygen. Then, the water in the water storage tank 4 is again supplied to the first-stage water tank 1 by the water supply pump 5 to form a circulating water system.

Next, a communication branch pipe 7 is provided upright above the water surface of the water storage tank 4. The communication branch pipe 7 has a bottomed cylindrical shape with one end opened, and the open side is immersed in water to form a water-sealed space 71 located on the water surface inside. A communication pipe 8 communicating with the throat space 31s of the venturi tube 3 is provided on the bottom side (upper part in the drawing) of the water seal space 71.
Are connected to the side of the water sealing space 71, and the communication pipes 9, 9,... Connected to the port 25 of the top 24 of each of the siphon pipes 2, 2,. Thus, the throat space 31s of the venturi tube 3 and the top space 24s of the siphon tube 2 are connected to each other via the water seal space 71 of the communication branch pipe 7.

[0014]

The operation of the present embodiment will be described below, with the configuration described above. When water is supplied from the water storage tank 4 to the first-stage water tank 1b via the venturi tube 3 by the activation of the water supply pump 5, the negative pressure generated by the venturi tube 3 reaches the water seal space 71 in the communication branch pipe via the communication pipe 8 and The inside of the space 71 is brought into a negative pressure state. This negative pressure is applied to each communication pipe 9 connected to the port 25 of each siphon pipe 2, 2,.
9, acts as a suction force on the top space 24s of the siphon tube 2 through the opening (the water inlet 21) of the siphon tube 2.
When the h and the vent hole 23) are sealed with water, a siphon function is formed. 4, the siphon function is maintained when the ventilation hole 23 formed on the pipe side of the water inlet side 21 is below the water surface 10, but the water level falls and the ventilation hole 23 When it appears on the upper surface 10, air enters the pipe and the siphon function is destroyed.
The water supply to is stopped.

The siphon pipe 2a installed between the water tank 11 and the pre-stage water tank 11 is provided as long as the siphon function is not destroyed.
Water is continuously supplied from the former-stage water tank 11. When the water level in the water tank 12 rises due to this water supply, the ventilation holes 23
Is sealed below the water surface 10, and at the same time, a suction force is applied from the port 25 of the top 24, the siphon function of the siphon pipe 2b to the next stage is restored, and water flow starts again, and the next stage water tank 13 Water will be sent to

In this way, the water in each of the water tanks 1, 1,...
The water surface 10 (or the water level) is maintained at the position of the vent hole 23 while repeatedly stopping and restoring the siphon function in response to the change in the water level with respect to.

The throat space 3 of the venturi tube 3
1 s and the top space 24 s of each siphon tube 2, 2,.
The water is sucked together with the intake air from the port 25 to the communication pipes 8 and 9 and flows through the communication pipes 8 and 9.
Is released into the water in the water storage tank 4, the water sucked and carried falls into the water storage tank 4, and only the negative pressure is transmitted through the communication pipes 8 and 9.

The water is drained from the water tank 1e at the last stage to the upstream side of the natural purification environment water channel 6 through the siphon pipe 2e similar to the above, and is naturally purified while flowing through the water channel 6. Further, the water is dropped into the water storage tank 4 via the small waterfall 63, and the water is again sent to the first-stage water tank 1b by the water supply pump 5, thereby forming a circulating water system using a biotope.

[0019]

[Possibility of Other Embodiments] In this embodiment, the water tank group 1 is used.
Are arranged in a four-stage configuration, but it is a matter of course that the present invention is not limited to this, and there is no theoretical limit to the number of stages.

Further, the arrangement of the water tank 1 is such that the water level is kept low as it goes to the next stage, but it is not limited to this. As long as water can be sent by the siphon function, it may be arranged horizontally.

Further, a water inlet 21h of the siphon pipe 2 is arranged near the bottom of the water tank 11 on the front side, and a vent hole 23 is formed on the pipe side of the water inlet side 21, and the position of the vent hole 23 indicates the water level. Although the maintenance is performed, the water inlet 21h may serve as the ventilation hole 23 and the water inlet 21h, and may be arranged at a position of a desired set water level.

The communication branch pipe 7 and the venturi pipe 3
May be provided in plural numbers. For example, water tank 1
A communication branch pipe 7 and a venturi pipe 3 may be provided for each.

[0023]

[Effect] The present invention is configured as described above, so that only the use of the water supply energy of a single water supply pump can be used.
It has an epoch-making effect that can control water supply to a plurality of water tank groups, maintain the water level, and further purify water.

In addition, since the release and restoration of the siphon function are controlled by setting the position of the ventilation hole or the water inlet formed in the siphon pipe, it is also necessary to install a mechanical or electrical water level sensor. It has a remarkable effect that the set water level can be reliably maintained with an extremely simple structure.

When the water inlet of the siphon pipe is arranged near the bottom of the water tank, there is an effect that excrement and the like settled at the bottom of the water tank can be efficiently removed together with the drainage.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the overall configuration of the present embodiment.

FIG. 2 is an enlarged sectional view showing a main part of the embodiment.

FIG. 3 is an enlarged cross-sectional view illustrating a main part of the present embodiment.

FIG. 4 is an enlarged sectional view showing a main part of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 water tank 1b first-stage water tank 1e last-stage water tank 10 water surface 11 front-stage water tank 12 concerned water tank 13 next-stage water tank 2 siphon tube 2a siphon tube (from the previous stage) 2b siphon tube (to the next stage) 2e siphon tube (the last stage) 21) Inlet 21h Inlet 22 Outlet 22h Outlet 23 Vent 24 Top 24s Top space 25 Port 3 Venturi 31s Throat space 4 Reservoir 5 Water pump 6 Natural purification environment water channel 61 Debris 62 Water plant 63 Kotaki 7 Communication branch pipe 71 Water seal space 8 Communication pipe (with Venturi pipe) 9 Communication pipe (with siphon pipe)

Claims (4)

[Claims] 1. A water tank group is arranged in a plurality of stages by mutually communicating the water tanks with siphon pipes, and water is supplied to a first-stage water tank via a Venturi pipe.
The siphon pipe is configured to drain water from the final tank through a siphon pipe.In each siphon pipe, the water inlet is arranged near the bottom of the water tank, and a vent hole is provided on the pipe side on the water inlet side according to the desired water tank water level. Wherein the top space of each siphon tube and the throat space of the venturi tube communicate with each other via a water seal space in a communication branch pipe arranged on the water surface. Water level plumbing device. 2. A water tank group is arranged in a plurality of stages by communicating the insides of the water tanks with each other with a siphon pipe, and water is supplied to a first-stage water tank through a Venturi pipe.
The siphon pipe is configured to drain water from the final water tank via a siphon pipe, and the siphon pipes are arranged so that the water inlet is in accordance with the desired water tank water level, and the top space of each siphon pipe and the throat space of the Venturi pipe. Is a constant-level water supply / drainage device for a multi-stage water tank characterized by communicating with each other via a water sealing space in a communication branch pipe arranged on the water surface. 3. A circulating water system, wherein water is supplied to a first-stage water tank from a water storage tank provided with a communication branch pipe by using water-supplying means, and drainage from the last-stage water tank is returned to the water storage tank. 3. The method according to claim 1, wherein
A constant level water supply / drainage device for a multi-stage water tank as described. 4. A water supply / drainage device having a plurality of water tanks according to claim 3, wherein drainage water from the last water tank is returned to the water storage tank via a natural purification environment waterway. A multi-stage water tank biotope circulating water system.