JPH0634665B2 - Constant water level water supply / drainage device and open type constant water level water circulation device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has a device for draining by a siphon action caused by interlocking with water supply, while maintaining a constant water level in a tank, and a purification means using such a device. The present invention relates to an open-type constant water level water circulation device that discharges water again into the tank.

[Conventional technology]

Conventionally, water supply and drainage into the water tank have been performed using individual pumps. In simultaneous water supply / drainage, the constant water level in the tank is maintained by detecting the water level using mechanical means such as float or electric means and repeatedly starting and stopping each pump to balance the water supply and drainage. Went by keeping.

Also, for circulating purification of water in the tank, suck water with a pump,
After cleaning this with a filter, etc., it was returned to the tank.

[Problems to be Solved by the Invention]

In the above conventional device, it is necessary to separately provide a pump for water supply and a pump for drainage, and due to individual differences in pumping capacity and slight fluctuations in driving power, the balance adjustment becomes delicate and difficult. It was a thing. In addition, the method of repeatedly starting and stopping the pump has a drawback that the fluctuation range of the water level becomes large. Furthermore, since the sensing of the water level depends on mechanical and electrical means, the mechanism becomes complicated and there is a problem in its reliability and durability.

In addition, although it is possible to remove dust and the like by a circulation purification method using a filter or the like, it is not possible to completely remove bacteria and the like, and in order to prevent water from spoiling, some kind of chemical must be added, It was not the preferred method.

Further, as another method, a method in which an overflow hole is provided in the tank and the overflow water is drained to keep the water level constant at the hole is generally used.

However, even with this method, since the overflow water is discharged, only the liquid on the surface of the tank can be removed, and there is a problem that the dust, sludge, and dirt that have settled at the bottom of the tank cannot be discharged efficiently. The holes are limited to fixed ones, and there is a disadvantage that the water level cannot be appropriately set at a desired position.

[Object of the Invention]

Therefore, the present invention has been made in view of the problems of the above-described conventional technology, and the purpose thereof is to supply water into the tank with a single pump and induce a siphon function in conjunction with this. Accordingly, it is an object of the present invention to provide a device that promotes the discharge of the liquid in the tank, keeps the water level in the tank constant, and can also expect the melting of oxygen.

In addition, the present invention also provides an open type constant water level water circulating device in which the discharged water is returned to the tank after being subjected to open type natural purification such as irradiation of sunlight.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a pump (2) for supplying water into a tank (1), a Venturi pipe (6) connected to a water supply pipe (4) of the pump (2), and a substantially inverted U. It consists of a siphon tube (9) bent in a letter shape, and a communication tube (7) that connects the bent part (10) of this siphon tube (9) and the throttle part (5) of the Venturi tube (6). To be done.

And, one end side (13) of the siphon tube (9) is the tank (1)
Pores (17) are provided at a position that is arranged inside and that is lower than the bent portion (10). In addition, the other end of the siphon tube (9) (1
4) is arranged outside the tank (1) and its end opening (15) is immersed in a liquid and sealed.

Further, a cleaning means (18) is interposed between the other end side (13) of the siphon tube (9) and the pump (2) and is connected by a water channel.

[Action]

 Next, the operation will be described.

When the liquid (mainly water) sent into the tank by the operation of the pump passes through the Venturi tube, a negative pressure is generated by the narrowed portion of the throttle. This negative pressure acts on the bent portion of the siphon pipe through the communication pipe to induce the siphon function and discharge the liquid in the tank. Here, since the negative pressure also changes in connection with the water supply amount, the drainage amount increases as the water supply amount increases.

Then, while the liquid in the tank is blocking the pores, the siphon function is maintained and the discharge is promoted.

When the liquid surface descends and comes near the pores, air is sucked from the pores, bubbles are mixed in the drainage, and a multiphase flow state of water and bubbles occurs. As a result, the apparent specific weight of the liquid is reduced, the suction and discharge pressure is reduced, and the drainage capacity is reduced.

However, since a negative pressure is constantly generated in the siphon pipe by the communication pipe, it does not become atmospheric pressure.

Furthermore, when the liquid surface comes below the position of the pores and the pores are completely exposed, only air enters from the pores and the inside of the siphon pipe becomes atmospheric pressure, the siphon function is released, and drainage is stopped.

Here, the air sucked from the pores or the air sucked together with water becomes fine particles at the narrowed portion of the Venturi pipe through the communication pipe, is mixed into the water supply and is fed into the tank.

Next, when the water supply continues and the liquid level rises to close the pores, the inside of the siphon pipe becomes negative pressure again due to the action of the communication pipe, the siphon function is restored, drainage begins, and the rise of the liquid level is suppressed.

That is, the liquid level is held at the position of the pores by repeating the maintenance / stop / recovery of the siphon function.

In many cases, when the amount of water supply does not change and is constant, the water level balances at the position of the pores.

〔Example〕

Next, an example of a specific embodiment of the present invention will be described with reference to the drawings.

In the embodiment shown in FIG. 1, the constant water level water supply / drainage device of the present invention and the open type constant water level water circulation device using the same are used as a circulation purification device for an aquarium for appreciation of goldfish, tropical fish and the like.

Reference numeral 1 is a water tank for appreciation, the side surface of which is formed of a transparent body such as glass. Water is supplied to the water tank 1 from an outdoor tank 3 via a water supply pipe 4 by a water supply pump 2. A venturi pipe 6 having a tapered portion and having a tapered portion 5 formed in the middle is connected to the middle of the water supply pipe 4. Aperture part 5
The communication pipe 7 is attached at a substantially right angle, and the front end opening 8 thereof is connected to the bent portion 10 of the siphon pipe 9. That is, the internal space 11 of the narrowed portion 5 and the bent portion 1
The internal space 12 of 0 is communicated with each other through the communication pipe 7.

The siphon tube 9 is formed in a substantially inverted U shape, one end side thereof is extended, and the siphon tube 9 is arranged at the bottom portion of the water tank 1 and serves as a water absorption tube 13. In addition, the other end side is disposed outside the water tank 1 and the drain pipe 1
It is supposed to be 4. The tip opening 15 of the drainage pipe 14 is the water tank 1
It is immersed in the liquid of the water receiving tank 16 provided outside and sealed.

The water suction pipe 13 of the siphon pipe 9 is provided with a small-diameter pore 17 at a position lower than the bent portion 10.

From the water receiving tank 16, a purification gutter 18 is passed to the outdoor tank 3 to form a water channel. Pebbles, sand, etc. are spread in the septic tank 18. These are arranged outdoors, particularly in a place where sunlight is often irradiated, so that the water from the water receiving tank 16 is purified while being in the purification gutter 18 and the outdoor tank 3. In addition to this, other purification means such as a filter may be provided in the middle of the septic tank 18, or a sedimentation tank may be provided.

In addition to or in addition to such purification means, heating or cooling means for adjusting the water temperature in the water tank 1 may be interposed.

With the above configuration, when the pump 2 is operated, negative pressure is generated due to the throttle portion 5 of the Venturi tube 6. The negative pressure acts on the bent portion 10 through the communication pipe 7 to bring the space 12 to the atmospheric pressure or below and induce the siphon function. And the water absorption pipe 1
3 sucks the feces and pollution at the bottom of the water tank 1,
It is discharged to the water receiving tank 16 through.

In addition, the liquid surface 19 is formed by the action of the pores 17 described above.
It is held at position 7 to keep the balance between water supply and drainage.

Although the pores 17 of this embodiment are provided directly on the water absorption pipe 13, the present invention is not limited to this. As shown in FIG. 2, the flexible branch pipe 20 is provided on the outer peripheral side surface of the water absorption pipe 14. attachment,
The tip end opening 21 may be used as a pore and held by a holder 22 so that it can be adjusted to an appropriate position.

Finally, the application of the constant water level water supply / drainage device of the present invention and the open type constant water level water circulation device using the same is not limited to the above-mentioned purification of a small home-use water tank for appreciation, and for example, in a hot spring or a public bath. It has a wide range of uses, such as being used as a circulation purifying means for bathtubs or cages for live fish stores.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

Since the water is drained by the siphon function that is linked to the water supply, there is no need to install a drainage pump, and the mechanism is simple.

In addition, there is an advantage that the amount of drainage and the start / stop of drainage can be adjusted only by operating the water supply pump.

The water intake pipe has pores, and the amount of drainage is adjusted by stopping / restoring the siphon function caused by the ingress of air from this to keep the water level constant, so the water level maintenance mechanism is very simple and reliable. Is excellent.

Since the siphon function can suck dust and polluted water floating at the bottom of the tank, instead of discharging the overflow water, the tank can be efficiently cleaned.

When circulating the wastewater, the drainage channel and the water supply channel can be performed not by a closed circuit but by an open route, so that the drainage can be exposed to sunlight, various purification means such as natural precipitation can be interposed, and A purifying action close to nature can be expected.

Since the pores can be adjusted, the liquid level can be set freely.

Further, since it is an open type circulation device, various devices can be intervened in the middle thereof in addition to the purification means. For example, the arrangement of heating or cooling means has the effect of suppressing the rise in water temperature in the summer and maintaining a constant water temperature in tropical fish breeding.

Further, even if the amount of water supply is increased, the amount of discharge also increases, so that there is an advantage that a large amount of water can form a flow in the tank and the water level can be made constant. This "stream" is an important factor especially in the breeding of river fish.

In addition, the air sucked from the pores becomes fine particles at the narrowed part of the Venturi tube through the communication tube and is mixed into the feed water and sent into the tank, so that oxygen is effectively added to the water in the tank. It can be melted and is very beneficial for fish breeding.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts showing an example of implementation of a constant water level water supply / drainage device and an open type constant water level water circulation device using the same. FIG. 2 is a cross-sectional view of essential parts showing another embodiment of the arrangement of pores. 1 ... Water tank, 2 ... Pump, 6 ... Venturi pipe, 7 ... Communication pipe, 9 ... Siphon pipe, 17 ... Pore,

Claims (2)

[Claims] 1. A pump (2) for supplying water into the tank (1);
A venturi pipe (6) connected to the water supply pipe (4) of (2); a siphon pipe (9) bent and formed in a substantially inverted U shape; and a bent portion (10) of the siphon pipe (9) And a communication pipe (7) that communicates between the venturi pipe (6) and the narrowed portion (5) of the venturi pipe (6); one end side (13) of the siphon pipe (9) is disposed in the tank (1), And bend (1
A porosity (17) is provided at a position lower than (0); the other end side (14) of the siphon tube (9) is arranged outside the tank (1), and its end opening (15) is liquid. Constant level water supply / drainage device characterized by being immersed in liquid and sealed 2. The other end side (1) of the siphon tube (9) according to claim 1.
Between the (4) and the pump (2) according to claim 1, a purification means (18)
An open type constant water level water circulation device characterized in that it is connected to a water channel by interposing a pipe.