JPH0372829A - Water supply and drain device of constant head and open type water recycling apparatus of constant head using the same device - Google Patents

Abstract

PURPOSE:To drain a water supply and drain device by a siphon action linking to and resulting from water supply while maintaining constant head in a tank by communicating a throttling part of a venturi pipe connected to a water tube of a pump to supply water to the tank to a bent part of a siphon pipe through a communicating pipe. CONSTITUTION:When water is sent to a water tank 1 by a pump 2, negative pressure is produced by a throttling part 5 of a venturi pipe 6, the negative pressure acts on a bent part of a siphon pipe 9 through a communicating pipe 7 and the water tank is drained by action of siphon. Only air from an air vent 17 is introduced and the siphon pipe becomes atmospheric pressure to stop siphon action.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a device for draining water by a siphon effect linked to water supply while keeping the water level in the tank constant, and a device for draining water through a purifying means using such a device. This invention relates to an open type constant level water circulation device in which discharged water is later supplied back into the tank.

[Conventional technology]

Conventionally, water supply and drainage into an aquarium have been performed using separate pumps. In simultaneous water supply and drainage, maintaining a constant water level in the tank uses mechanical means such as floats or electrical means to sense the water level and repeatedly start and stop each pump to maintain a balance between the amount of water supplied and the amount of water discharged. This was done by maintaining the

In addition, to circulate and purify the water in the tank, the water is sucked in with a pump, etc.
This was purified using a filter and then returned to the tank.

[Problem to be solved by the invention]

In the conventional equipment described above, it is necessary to install a pump for water supply and a pump for drainage separately, and due to individual differences in pump capacity and slight fluctuations in driving power, balance adjustment becomes delicate and difficult. It was something. In addition, the method of repeatedly starting and stopping the pump had the disadvantage that the range of fluctuations in the water level became large. Furthermore, since water level sensing relies on mechanical and electrical means, the mechanism is complicated and there are problems with its reliability and durability.

In addition, although it is possible to remove dust etc. using a circulating purification method using filters, etc., it is not possible to completely remove bacteria etc., and some kind of chemical must be added to prevent the water from spoiling. It wasn't the preferred method.

Another commonly used method is to provide an overflow hole in the tank and drain overflow water to maintain a constant water level at the hole.

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

[Purpose of the invention]

Therefore, the present invention has been made in view of the above-mentioned problems of the conventional technology, and its purpose is to supply water into a tank using - pumps, and to perform a siphon function due to the interlocking of these pumps. The present invention aims to provide an apparatus that can accelerate the discharge of the liquid in the tank, keep the water level in the tank constant, and can also be expected to melt oxygen.

In addition, the present invention also provides an open-type constant water circulation device in which this device is used to return the discharged water to the tank after undergoing open-type natural purification such as irradiation with sunlight.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a pump (2) that supplies 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 Consists of a siphon tube (9) bent into a letter shape, and a communication tube (7) that communicates the bent portion 00 of the siphon tube (9) with the constricted portion (5) of the Venturi tube (6). .

One end 0 of the siphon pipe (9) is disposed within the tank ( ), and a pore 01 is provided at a position below the bent portion OI. The other end (2) of the siphon pipe (9) is placed outside the tank (1), and its end opening (2) is immersed in the liquid and sealed.

Furthermore, the other end side alJ of the siphon pipe (9) and the pump (2
) are connected by a waterway with a purifying means 0υ interposed between them. [Function] Next, the function will be explained.

When the liquid (mainly water) sent into the tank by the operation of the pump passes through the Venturi tube, a negative pressure is created by the narrowed diameter of the venturi tube. This negative pressure acts on the bent part of the siphon pipe through the communication pipe, induces a siphon function, and discharges the liquid in the tank. Here, since the negative pressure also changes in conjunction with the amount of water supply, as the amount of water supply increases, the amount of drainage also increases.

As long as the liquid in the tank closes the pores, the siphon function is maintained and drainage is promoted.

When the liquid level falls and comes near the pores, air is sucked through the pores and bubbles are mixed into the waste water, creating a multiphase flow of water and bubbles. As a result, the apparent specific weight of the liquid decreases, the suction and discharge pressure decreases, and the drainage capacity decreases.

However, because a negative pressure is always generated in the siphon pipe due to the communication pipe, the pressure never reaches atmospheric pressure.

Furthermore, when the liquid level falls below the pores and the pores are completely exposed, only air enters through the pores and the inside of the siphon pipe becomes atmospheric pressure, the siphon function is canceled and drainage stops.

Here, the air sucked through the pores or the air sucked together with water passes through the communication tube and becomes fine particles at the constriction part of the Venturi tube, and is mixed with the water supply and sent into the tank.

Next, when water continues to be supplied and the liquid level rises and closes the pores, negative pressure is again created inside the siphon tube by the action of the communication pipe, the siphon function is restored and drainage begins, suppressing the rise in the liquid level.

That is, by repeatedly maintaining, stopping, and restoring the siphon function, the liquid level is maintained at the pore position.

Note that in most cases, when the amount of water supplied is constant and does not change, the water level is approximately balanced at the position of the pores.

〔Example〕

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

The embodiment shown in FIG. 1 shows how the constant water level water supply and drainage device of the present invention and the open type constant water level water circulation device using the same can be used to feed goldfish, tropical fish, etc. This was used in a circulation purification system for prize aquariums.

1 is an aquarium for viewing, and its narrow surface is made of a transparent material 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. Connected to the middle of the water supply pipe 4 is a venturi pipe 6 which is tapered and has a constricted part 5 formed in the middle. Aperture part 5
A communicating tube 7 is attached at a substantially right angle from the holder, and its tip opening 8 is connected to a bent portion 10 of the siphon portion 9. That is, the internal space 11 of the constriction part 5 and the bent part I
The internal space 12 of O is communicated with through a communication pipe 7.

The siphon part 9 is formed in a substantially inverted 0 shape, and one end side is extended and placed at the bottom of the water tank 1 to serve as a water suction pipe 13. In addition, the other end side is placed outside the aquarium l and the drain pipe 1
It is said to be 4. The tip opening 15 of the drain pipe 14 is connected to the water tank 1.
It is immersed in liquid in a water receiving tank 16 provided outside and is sealed in liquid.

A small-diameter pore 17 is provided in the water suction pipe 13 of the siphon part 9 at a position lower than the bent part 10.

From the water receiving tank 16, the purifier 1B is passed to the outdoor tank 3 to form a waterway. The inside of the purification gutter 18 is filled with pebbles, sand, etc. These are placed outdoors, particularly in a place that is well exposed to sunlight, so that the water from the water tank 6 is purified while it is in the purification gutter 18 and the outdoor tank 3. In addition to this, other purifying means such as filtering with a filter or a settling tank may be provided in the middle of the septic tank 18.

In addition, instead of or in addition to such a purifying means, a heating or cooling means may be provided to adjust the water temperature in the water tank l.

With the above configuration, when the pump 2 is operated, negative pressure is generated due to the constriction portion 5 of the Venturi tube 6.

The negative pressure acts on the bent portion lO through the communication pipe 7, and the space 1
2 to below atmospheric pressure to induce the siphon function. Then, excrement, dirt, etc. at the bottom of the water tank 1 are sucked up by the water suction pipe 13 and discharged into the water receiving tank 16 through the drain pipe 14.

In addition, the liquid level 19 is raised by the pores 1 due to the action of the pores [7] mentioned above.
It is held at position 7 to maintain a balance between the amount of water supplied and the amount of water discharged.

Although the pores 17 in this embodiment were provided directly on the water suction pipe 13, the present invention is not limited to this. As shown in FIG. attachment,
This front end opening 21 may be used as a hole, and the holding tool 22 may be used to hold it so that it can be adjusted to an appropriate position.

Finally, the application of the constant water level water supply and drainage device of the present invention and the open type constant water level water circulation device using the same is not limited to the purification of the above-mentioned small domestic ornamental aquariums, but is also applicable to, for example, hot springs and public baths. It has a wide range of uses, such as being able to be used as a means of circulating purification in bathtubs or fish tanks at live fish stores.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

■ Drainage is performed by a siphon function linked to water supply, so 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 and stop of drainage can be adjusted simply by operating the water supply pump.

■ The water suction pipe has pores, and the water level is maintained at a constant level by regulating the amount of water discharged by stopping and restoring the siphon function through the entry of air, making the water level maintenance mechanism extremely simple and reliable. Excellent in sex.

■ Rather than draining overflowing water, the siphon function can suck up dust and polluted water floating at the bottom of the tank, making it possible to purify the inside of the tank efficiently.

■ When recycling wastewater, the drainage channel and water supply can be done in an open route rather than in a closed circuit, so it is not possible to subject the wastewater to various purification methods such as sunlight irradiation or natural sedimentation. , we can expect a purification effect closer to that of nature.

■ Since the pores are adjustable, the liquid level can be set freely.

■ Also, since it is an open circulation system, it is possible to intervene with various devices in addition to purification means. For example, by arranging heating or cooling means, it is possible to suppress the rise in water temperature in summer, It also has the effect of maintaining a constant water temperature when breeding tropical fish.

Furthermore, even if the amount of water supplied is increased, the amount of discharged water also increases, so there is an advantage that a flow can be formed in the tank by supplying a large amount of water, and the water level can be kept constant. This "flow" is an important element, especially when breeding river fish.

■ In addition, the air sucked through the pores passes through the communication pipe, becomes fine particles at the constriction part of the Venturi tube, mixes with the water supply, and is sent into the tank, effectively oxygenating the water in the tank. can be melted and is very useful for fish breeding.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part showing an example of an implementation of a constant water level water supply and drainage device and an open type constant water level water circulation device using the same. FIG. 2 is a cross-sectional view of a main part showing another example of pore arrangement. l ・ 6 ・ 9 ・ ・Aquarium, 2... Pump.・Venturi tube 7...Communication tube.・Siphon tube 17...Stomata.

Claims (1)

[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 into a substantially inverted U-shape;
; Bent part (10) of siphon tube (9) and Venturi tube (
a communication pipe (7) that communicates with the constricted part (5) of the siphon pipe (9); one end (13) of the siphon pipe (9) is arranged in the tank (1) and A pore (17) is provided below the siphon tube (9).
A constant water level water supply and drainage device 2 characterized in that the other end (14) is disposed outside the tank (1), and the end opening (15) is immersed in liquid and sealed. The other end side (14) of the siphon tube (9) described in Item 1
and the pump (2) according to claim 1, the purifying means (1
8) An open type constant water level water circulation device characterized by being connected to a water channel through an intervening channel.