JPH04144628A - Automatic siphon device for two-stage water tank - Google Patents

Abstract

PURPOSE:To eliminate obstacles to admiration from a rearing water tank, simultaneously provide quiet operating sound and prevent water from scattering by connecting an air vent pipe to a head producing cylinder and an air separating chamber with a water-sealed U-tube. CONSTITUTION:An air vent pipe 5 is connected to a head producing cylinder 6 having a discharge port 7 and an air separating chamber 4 with a water-sealed U-tube 10. A water collection box 1 is connected to the air separating chamber 4 and a water level regulating valve 8 with a pipe 3. All of them are formed into an integral structure and can be fixed to the glass surface with suckers, etc. As a result, obstacles to admiration are eliminated from a rearing water tank 2. Since the size of the aforementioned device is small, admiration is not disturbed. Furthermore, since air is not entrained, operating sound becomes quiet and the water tank is suitable as a water tank for water grass without scattering water. Since the flow velocity is high, no air reservoir is formed in the tip thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an externally attached device for controlling flowing liquid when the liquid is circulated between water tanks installed above and below.

(Conventional technology) For ornamental saltwater fish tanks and live fish tanks, a two-tiered aquarium called an overflow type aquarium with a drop pipe set up inside the breeding aquarium is used in most cases, but it is easily damaged during production. It is made of acrylic and has a complicated shape, with the water supply pipe passing inside the drop pipe, and the drop pipe must pass through the bottom plate of the aquarium, so it requires advanced technology, so it is manufactured to order by experts. The price is high.

In terms of operation, the overflowing water from the upper aquarium falls into the lower aquarium while entraining air, making a loud falling sound and causing a lot of water to scatter, making it unsuitable for aquatic plants aquariums.

In terms of ornamentation, the size of the drop pipe in the aquarium must be increased in order to allow the water that is exposed to the atmosphere to fall with the air, and if it gets on the acrylic, it can cause scratches and become a major hindrance.

(Problems to be Solved by the Invention) The disadvantages of the overflow type water tank can be summarized as follows.

(a) Falling pipes obstruct viewing.

(b) Made of acrylic that is easily scratched.

(It is technically difficult to make it in a glass aquarium.

) The price is high because it is made to order.

(e) It is not suitable for aquatic plants aquariums as it traps air.

(f) The operation noise is loud because air is drawn in.

(g) Since air is drawn in, there is a lot of water splashing.

The present invention is intended to solve the above-mentioned drawbacks and to create an aquarium system with high ornamental value regardless of whether it is freshwater or seawater.

(Means for solving the problem) The top of the head generating cylinder (6), which has a discharge port (7) at the bottom and an air vent pipe (5) extending to the bottom at the top, and an air separation chamber (4) ) with the top of the water injection U-shaped pipe (10), and the pipe (3) connects the water collection box (1), air separation chamber (4), and water level control valve (8), and these are integrated into a suction cup. An automatic siphon device for two-tiered aquariums that can be fixed to the glass surface with etc.

(Function) Fit the water collection box (1) into the - corner frame of the upper breeding tank (2), and fix the head generating tube (6) to the upper inside of the lower filtration tank (9) using a suction cup or the like. The assembly is completed by connecting the water collection box (1) and the head generating cylinder (6) with the pipe (3).

To prepare for operation, fill the water collection port of the water collection box (1) of the rearing tank (2) with water since it will be submerged in water, and install a water injection U-shaped pipe (
Fill the pipe (10) with water until the top surface of the lowest part is submerged in water, insert a thin hose etc. into the water collection port and suck out the air with the mouth to forcefully generate a siphon phenomenon in the pipe (3) to create a head-generating pipe (6). ) is filled with water and the manual preparation is completed by waiting for the siphon phenomenon to disappear as the water level falls.

The state of the water surface position after preparation is that the water surface of the rearing tank (2) is away from the water collection port of the water collection box (1), and the water flow path is from the outlet ('7).
), forming a communicating pipe structure, so based on Pascal's principle, water collection box (1), pipe (3), and air separation chamber (4)
, the air separation chamber (4) side of the water seal tube (10) is filled with an air layer, and conversely, the head generating tube (6) of the water injection U-shaped tube (10) is filled with an air layer.
The side, head generating cylinder (6), and air vent pipe (5) are filled with water and then stopped. However, at this time, if the diameter of the water-sealing tube (lO) is small, capillary action due to surface tension will cause the water injection U-shaped tube (1
The water surface on the air separation chamber (4) side of 0) is stabilized at a position slightly higher than the water surface of the filtration tank (9).

The siphon phenomenon occurs when the pump (14) is turned on, and the water level in the filtration tank (9) begins to fall, while the water level in the rearing tank (2) begins to rise, causing the water surface to drop to the water collection box (1).
Since the cross-sectional area inside the water collection box (1) is larger than that of the pipe (3), positive pressure is generated in the air layer as the water level rises. On the other hand, on the filtration tank (9) side, the water surface is
10) and further descends, the water surface of the water injection U-shaped tube (10) increases from the bottom of the head-generating tube ( 6) side, the water seal is broken, and the drop pressure from the water surface of the filtration tank (9) to the top of the head generating tube (6) turns into suction force, and the water injection U-shaped tube (10) The water inside the box is discharged to the head generating tube (6), creating a large negative pressure in the entire air layer, and the water surface inside the water collection box (1) acts as a physical valve and the water flows from the water collection box (1) to the pipe (3). ) begins to flow down.

The air in the tube (3) moves to the head generating cylinder (6) and the air in the tube (
3) When the inside is filled with water, the weight of the water acts as a piston, a siphon phenomenon occurs, and a steady flow occurs.

At this point, the flow rate in the water injection U-shaped tube (10) increases, so positive pressure is generated in the head generating tube (6), and the accumulated air is forced from the air vent tube (5) to the filtration tank. 9) The fluid is discharged into the tank and normal operation begins.

The siphon phenomenon does not disappear during steady operation because the water level control valve (8) automatically maintains the water level through the action of the flow control valve (11), but due to a power outage etc.
14) is stopped, the water level in the rearing tank (2) drops, and air enters the water collection box (1), the siphon phenomenon disappears and the condition returns to the state after preparation for operation.

As for the reoccurrence of the siphon phenomenon, as long as the function of the pump (14) is restored, as mentioned above, the siphon phenomenon will reoccur as a result of a series of operations after the operation of the pump (14).

(Example) The siphon phenomenon disappears when the flow rate of water exceeds the capacity of the pump or when the pump is stopped, while its occurrence occurs when the operation is restarted, but this is not the case during steady operation. Since this does not occur, the present invention has a function as a safety device in case of an emergency and a function as a water level adjustment device, and is comparable to an overflow type in terms of safety.

In terms of ornamentation, in the siphon type, the weight of the water acts as a suction pump, so it is sufficient that the thickness of the drain hose is the same as that of the water supply hose. It can be molded in one piece, and if the hose for running water and water supply are connected in parallel, it can be housed in a decorative cover that is several centimeters wide and half that deep. In addition to the hose, the decorative cover also serves as a duct for storing necessary items such as lighting cords, and if it is placed in the most inconspicuous corner of the aquarium, it will not interfere with the aquarium's viewing from all sides.

(Effects of the Invention) The effects obtained by using the present invention can be summarized as follows.

(a) Things that obstruct the viewing will be removed from the aquarium.

(b) Because it is small, it does not get in the way of viewing.

(c) Operation noise is quiet because air is not drawn in.

) It is also suitable for aquatic plants aquariums because it does not trap air.

(e) No air is drawn in, so there is no water scattering.

(f) Because the flow rate is fast, there is no air pocket at the top.

As described above, since the present invention does not select the material of the aquarium, it is ideal for use in glass interior aquariums that have recently been commercially available, and provides both extremely high ornamental value and highly efficient filtration using an under-mounted filtration tank. You can create an aquarium system.

[Brief explanation of the drawing]

The drawing is a partial vertical sectional view showing the installation state of the present invention in a stopped state.

Claims (1)

[Claims] A head generating cylinder (with an air vent pipe (5) and a discharge port (7)
6) and an air separation chamber (4) are connected by a water injection U-shaped pipe (10).This is an automatic siphon device for a two-stage aquarium.