JPH075931A - Automatic regulator of constant water level - Google Patents

Abstract

PURPOSE: To accurately and surely adjust the level of a liquid in a water tank with a simple constitution by installing a siphon tube to the tank for transferring the liquid to the other side and automatically discharging the liquid from the tank when the level becomes high or supplying the liquid to the tank when the liquid level becomes lower. CONSTITUTION: A siphon tube section 20 formed in an inverted U-shape having openings, a liquid supply port 21 formed in its upper end section, and control valves 22 and 23 formed on both sides of the port 21 is installed to a water tank 10 so that one opening of the tube 20 can be set at a level lower than the highest water level in the tank 10 and a water sealing tube section 30 having a U-shape is connected to the other end section of the tube 20. Then a water level adjusting tube section 40 having an inverted U-shape is connected to the tube section 30 so that the level of the internal surface part 40c at the bent section of the tube section 40 can become the same as the highest water level in the tank 10. In addition, an air port 41 is connected to the upper end section of the tube section 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying or discharging a liquid in a water tank, and when the liquid in the water tank is above a certain level, it is automatically discharged by a siphon action. The present invention relates to a constant water level automatic adjusting device that maintains a constant water level at all times by stopping the siphon action when the water level is below a certain level and supplying the liquid while suppressing the discharge of the liquid.

[Prior art]

[0002] Conventionally, in order to supply or discharge the liquid in the water tank, a water level adjusting device utilizing power is installed in the water tank,
The liquid is supplied or discharged while sensing the water level in the water tank. However, in such a conventional configuration, a complicated water level adjusting device and a sensing sensor or a sensing tool for sensing the water level must be installed. However, the cost is high, the failure rate is high, and it is difficult to always adjust the water level accurately. When the water level adjusting device cannot be installed due to the installation condition of the water tank, there is a disadvantage that the administrator must monitor the water level in the water tank as needed.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been devised to solve the above problems, and a siphon pipe for transferring one liquid to the other is provided in a water tank. By the action, the liquid is automatically discharged when the liquid level in the water tank is high, and it can be supplied when the liquid level is insufficient. It is intended to provide an automatic constant water level adjusting device that can accurately and reliably perform

[0004]

In order to solve the above-mentioned problems, the present invention uses a siphon action which utilizes a pressure difference to temporarily guide a liquid to a position higher than its liquid level and transfer it to a lower position. That is, the siphon pipe portion 20 whose one end is opened below the constant water level of the water tank, the water sealing pipe portion 30 capable of maintaining the state in which the liquid is filled in the pipe, and the air supply port 41 for suppressing the siphon action. Is provided to control the liquid discharge and the water level without power. Further, the present invention is a device for supplying or discharging a liquid by a siphon action, in which a siphon pipe portion 20 opened below the full water level in the water tank 10 is installed, and a U-shaped water seal is provided at the other end. The pipe portion 30 is connected in series, and further, the inverted U-shaped water level adjusting pipe portion 40 is connected so that the inner surface portion 40c of the folded portion is the same level as the full water level of the water tank 10, and the water level adjusting pipe portion 4
It is characterized in that it has a structure in which an air supply port 41 is connected to the upper end portion of 0 to provide a constant water level automatic adjusting device. Also,
In addition to the above configuration, the present invention is characterized in that a liquid supply port 21 is provided at the upper end of the siphon tube 20 and control valves 22 and 23 are provided on the siphon tube section 20 on both sides thereof.

[0005]

The siphon action occurs when the full water level of the water tank 10 rises and falls with respect to the bent inner surface portion 40c of the water level adjusting pipe portion 40.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a constant water level adjusting device according to the present invention, in which a siphon pipe portion 20 having a substantially inverted U shape (including a substantially inverted V shape), whose bent bottom portion is a water tank. The opening end 20a is located lower than the full water level in the water tank 10 while the opening end 20a is positioned higher than the full water level, and the other opening end is substantially U-shaped outside the water tank 10. It is connected to one end of the water sealing tube portion 30 (including a substantially V shape).

The water sealing tube portion 30 is installed such that the lower portion thereof, that is, the air inflow limit position C is lower than the full water level of the water tank, preferably lower than the opening 20a, and is substantially opposite to the other end portion. U-shaped (including almost V-shaped) water level adjustment pipe section 4
0 are installed in series so that the inner surface portion 40c of the folded portion between the rising pipe portion 40a and the hanging discharge pipe portion 40b, that is, the liquid upper surface adjustment position B is the same as the full water level of the water tank 10. In addition, an air supply port 41 that communicates the inside and outside of the pipe is connected to the folded top of the water level adjusting pipe portion 40.

The siphon pipe portion 20, the water sealing pipe portion 30 and the water level adjusting pipe portion 40 are detachably connected to each other so that the water sealing pipe portion 30 can be detached to easily clean the internal clogging. Is more preferable. Further, the discharge pipe portion 40b of the water level adjusting pipe portion 40 may be connected to the drainage channel, may be opened to the re-reservoir tank, or may be any other.

The automatic constant water level adjusting device having the above-mentioned structure is provided in the water tank 1.
0 and each of the pipes 20, 30 and 40a are filled with a liquid, the liquid level at the liquid level adjusting position B of the water level adjusting pipe 40 has a pressure difference between the liquid upper surface A in the water tank 10. When generated, the atmosphere is introduced or discharged from the air supply port 41 and is controlled so as to always have the same pressure and the same water level, and when the liquid upper surface A of the water tank 10 rises, the amount of the increased liquid is The water is discharged to the outside through the discharge pipe portion 40b,
To lower the water level inside.

When the liquid upper surface A descends to the liquid upper surface adjusting position B, the atmosphere is introduced from the air supply port 41 to eliminate the pressure difference between the liquid upper surface adjusting position B and the liquid upper surface A, and the liquid upper surface A and the liquid upper surface A. The water level in the water tank 10 is always kept constant by adjusting the water level to the adjusting position B.

Further, unless the liquid filled in each pipe portion evaporates or the water level in the water tank 10 lowers and the liquid upper surface A of the water tank 10 falls below the gas inflow limit position C, the liquid in the pipe does not flow. It stays as it is without being pulled out. When the liquid is replenished into the water tank 10 from this state and the liquid upper surface A rises and reaches the liquid upper surface adjusting position B or higher, the above-mentioned siphon action automatically occurs inside the pipe, that is, the liquid upper surface A and the liquid upper surface adjusting. The position B is automatically controlled so as to always have the same pressure and the same water level, whereby the liquid above a certain water level is discharged from the discharge pipe portion 40b.

As described above, the water level in the water tank 10 is always kept constant by repeating the siphon action by discharging the liquid, descending the liquid upper surface, retaining the liquid in the pipe portion, supplying the liquid, and ascending the liquid upper surface.

FIG. 2 shows a more preferred embodiment of the present invention. In addition to the configuration shown in the above embodiment, liquid is supplied to the upper end of the siphon tube portion 20 or air (air bubbles) in the tube. A liquid supply port 21 for removing water is provided, and preferably, a water supply pump 21a with a control valve (open / close valve) is installed at the liquid supply port 21, or the other end side (water seal A control valve or a water supply pump having a mechanism for closing the water flow to the pipe part) and opening the back flow is installed, and the water tank full level part on the opening 20a side and the liquid supply port 21 are connected. A control valve 22 is installed in the siphon pipe section 20 between them, a control valve 23 is also installed near the other end of the siphon pipe section 20, and an outlet 31 is detachably formed at the bottom of the water sealing pipe section 30. It has been configured.

The control valves 22 and 23 can be used when filling or supplying the liquid into the pipe or the water tank 10 through the liquid supply port 21 of the siphon pipe portion 20, and when filling the liquid into the pipe, Both valves 22 and 23 are opened or the valve 22 is closed and the valve 23 is opened to supply the liquid. On the other hand, when supplying the liquid into the water tank 10, the valve 22 is opened and the valve 23 is closed to supply the liquid.

Further, it can also be used to remove a substance (precipitate or the like) having a weight or density higher than that of the liquid when it accumulates in the water sealing tube portion 30, and after the valve 23 is closed. , The siphon tube section 20 and the water level adjusting tube section 40 may be detached from the water sealing tube section 30 or the outlet 31 may be opened to remove the internal deposits and prevent the liquid from flowing out. You can The constituent parts shown in the above-mentioned two embodiments can be arbitrarily formed.

[0016]

As described above, the device of the present invention supplies liquid to a water tank without a direct discharge port, and discharges the liquid in the water tank while continuously overcoming the water level adjusting pipe portion. Therefore, it is possible to constantly adjust the liquid surface level of the liquid to a constant level with smooth drainage, and to discharge the water level of the liquid surface or change it arbitrarily according to the purpose of use.
It has a characteristic that it can be used for water tank, oil tank, and other liquid tanks and can maintain liquid while adjusting it to a constant water level without a separate overflow hole.

The apparatus of the present invention can easily discharge only the precipitate without flowing out the liquid even when the precipitate is accumulated in the pipe, and discharges liquid such as water at any time. It can be used for household appliances such as home appliances (air conditioners, etc.) that continuously discharges liquid, and has a feature that it can obtain the effect of sorting suspended matters such as sewage and impurities.

[Brief description of drawings]

FIG. 1 is a structural view showing an embodiment of a constant water level adjusting device according to the present invention.

FIG. 2 is a structural view showing another embodiment of the constant water level adjusting device according to the present invention.

[Explanation of symbols]

 10 Water tank 20 Siphon pipe part 20a opening 21 Liquid supply port 22,23 Control valve 30 Water sealing pipe part 31 Outlet 40 Water level adjusting pipe part 41 Air supply pipe

Claims (2)

[Claims] 1. A device for supplying or discharging a liquid by a siphon action, wherein a siphon pipe portion (20) opened below the full water level in a water tank (10) is installed, and a U-shaped water sealing pipe is provided at the other end. The water level adjusting pipe 40 having an inverted U-shape is connected so that the inner surface portion 40c of the folded portion has the same level as the full water level of the water tank 10, and the water level adjusting pipe 4 is provided.
An automatic constant water level adjusting device having a structure in which an air supply port 41 is connected to the upper end portion of 0. 2. The automatic constant water level adjusting device according to claim 1, wherein a liquid supply port 21 is provided at an upper end portion of the siphon tube 20, and control valves 22 and 23 are provided on the siphon tube portion 20 on both sides thereof.