JP3628862B2 - Antioxidant liquid level sealing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention prevents oxygen from entering the liquid surface and diffusing into the liquid, suppressing oxidation of oxidizable substances such as iron ions contained in spring water, drainage, etc., and preventing clogging of piping and system equipment In particular, the present invention relates to an antioxidant liquid level sealing method in which a non-volatile fluid used as a sealing material does not adhere to the inner wall surface of a tank or a tank.
[0002]
[Prior art]
Conventionally, in water supply systems such as spring water and drainage, oxygen in the air dissolves and infiltrates from the water surface into the water stored in the tank or tank and diffuses deeply into the water, so the concentration of iron ions etc. contained in the water is high In some cases, the component is oxidized by the oxygen to form a colloidal oxide, which often clogs the water supply piping and the like, which is a major obstacle.
Therefore, conventionally, the following preventive measures have been taken.
(1) Periodically clean the piping.
(2) Precipitate and remove oxidizable substances in water by chemical treatment.
(3) In the tank or tank of the water supply system, the surface of water that comes into contact with air is covered with the following shielding means (a) to (c) to block oxygen entering from the air and prevent oxidation.
(A) Oil, etc. (Japanese Patent Laid-Open No. 54-81661)
(B) Many floating balls, etc. (Japanese Patent Publication No. 5-79596)
(C) Floating roof, etc. (Japanese Patent Laid-Open No. 2-85188)
[0003]
[Problems to be solved by the invention]
However, these preventive measures still have various problems as follows.
In the case of {circle around (1)}, not only the cleaning is troublesome and expensive, but also the various operational devices must be stopped during that time, which impedes the operation of the facility.
In the case of (2), there are problems such as addition control technology and chemical secondary contamination according to the oxidizable substances in water, especially when the amount of spring water is large or the concentration of oxidizable substances is high. Countermeasures are difficult. There is also a problem with chemical costs.
In the case of (3), in (a), since the oil etc. adheres to the inner wall of the tank or tank as the water surface fluctuates up and down, the effective amount of the oil etc. decreases and the sealing performance deteriorates. In addition, the inner peripheral wall and the equipment in the tank (ladder, piping, etc.) may become dirty, which may cause the quality of the stored water to deteriorate, and it will also require maintenance work. In (b), there is a defect that the water surface touches the air in the gap between the float balls and the like, and oxygen entering from the air cannot be sufficiently blocked. When the water surface fluctuates due to entry / exit, earthquake, etc., the floating roof or the like is partially lifted into the air, and air may be embraced inside, and there is a disadvantage that oxygen entering from the air cannot be sufficiently blocked.
[0004]
The present invention is intended to solve these problems. The liquid level of spring water, drainage, etc. in a tank or tank has an accurate sealing property and is inexpensive and free from secondary contamination. Properly seal with a sealing material to sufficiently prevent oxygen entering from the liquid surface, and at the same time, the non-volatile fluid used as the sealing material is surrounded by a floating frame so that the non-volatile fluid is contained in the tank or tank. It prevents the liquid from adhering to the wall surface, prevents the effective amount of the non-volatile fluid from lowering due to the adhesion and the accompanying deterioration of the sealing performance and accurately prevents the stored liquid from being oxidized. It is intended to prevent deterioration of the properties of the stored liquid.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is loosely fitted in a tank or tank 2 for storing spring water, drainage, or other liquid to be protected 1 that needs to be prevented from oxidation, on the inner peripheral wall of the tank or tank. In addition, a floating frame 3 is floated on the liquid surface of the liquid 1 to be protected, and a coating 5 made of a nonvolatile fluid 4 covering the liquid surface of the liquid 1 to be protected is provided in the floating frame.
[0006]
According to the second aspect of the present invention, the protection target liquid 1 is loosely fitted to the inner peripheral wall of the tank or tank in the tank or tank 2 for storing spring water, drainage, or other protection target liquid 1 that requires oxidation prevention. A floating frame 3 is placed inside the floating frame, and a number of small floats 6 are arranged in the floating frame so as to float on the liquid surface of the liquid 1 to be protected. It is characterized by being covered by.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment according to the invention of claim 1.
In the figure, 1 is a protection target liquid such as spring water or drainage that needs to be oxidized, 2 is a rectangular tank or tank that stores the protection target liquid, and 3 is a liquid of the protection target liquid in the tank or tank. A floating frame 4 is floated on the surface, 4 is a non-volatile fluid disposed in the floating frame, and 5 is a non-volatile fluid film covering the liquid surface of the liquid to be protected.
[0007]
The buoyant frame 3 is composed of a main frame 8 in which a thin plate made of synthetic resin, wood or the like having a buoyancy is squarely assembled and in close proximity to the inner peripheral surface of the tank or tank 2, and a synthetic resin having buoyancy, wood, etc. It consists of an auxiliary frame 9 formed in a cylindrical shape and loosely fitted close to the insertion pipe 7 such as a water supply pipe or drainage pipe inserted straight from above into the tank or tank, and the upper half is in the air It protrudes and floats in the liquid 1 to be protected.
The main frame 8 may be formed from a plurality of divided bodies as shown in FIG. 2 when the tank or tank 2 is large. These divided bodies do not need to be connected, but may be connected and integrated in some cases.
[0008]
As the non-volatile fluid 4 for the coating 5 disposed in the floating frame, oil, liquid paraffin or the like is preferable.
[0009]
3 and 4 show an embodiment according to the second aspect of the present invention.
In the figure, 1 is a protection target liquid such as spring water or drainage that needs to be oxidized, 2 is a rectangular tank or tank that stores the protection target liquid, and 3 is a liquid of the protection target liquid in the tank or tank. Floating frame 6, which is floated on the surface, 6 is a large number of small floats arranged on the liquid surface of the liquid to be protected in the floating frame, and the non-volatile fluid 4 covers the gaps between these floats. doing.
[0010]
The floating frame 3 is formed in a rectangular frame 10 with a circular cross-section member such as a synthetic resin having a buoyancy, wood, etc., and the frame is loosely fitted close to the inner peripheral surface of the tank or the tank 2, and The upper half protrudes into the air and floats in the liquid to be protected. The frame 10 may be a hollow member, a rigid material, or a flexible material.
[0011]
The float 6 is formed in a hemispherical shape from a synthetic resin having buoyancy, wood or the like. In this case, since it does not rotate like a sphere, air is not taken in by rotation. It may be hollow or solid. Further, a rigid material or a flexible material may be used. Of course, if the air is not taken in by rotation or the like, it may have a spherical shape or other shapes.
The non-volatile fluid 4 that covers the gaps between these floats is preferably oil, liquid paraffin, or the like as in the case of FIG.
[0013]
According to the experiment, in any case, the floating frame 3 can prevent the non-volatile fluid 4 from adhering to the inner peripheral wall of the tank or the tank 2, and the liquid level can be sealed by 90% or more. The liquid 1 to be protected contains about 10 to 20 mg / l of iron ions and exhibits a red water state with a transparency of 10 to 35 cm to a clear water quality with a transparency of 50 cm or more. The action of becoming a body and adhering to the pipe wall could be suppressed, and the effect of preventing blockage of various devices in the piping system could be obtained.
[0012]
【The invention's effect】
According to the first and second aspects of the present invention, the non-volatile fluid 4 having a good sealing property is used in the tank or the tank 2 to seal the liquid surface against the liquid 1 to be protected such as spring water and drainage. However, since the non-volatile fluid 4 is disposed inside the floating frame 3, the non-volatile fluid 4 is blocked by the floating frame 3 and does not reach the inner wall surface of the tank or the tank 2. Even if the liquid level fluctuates up and down, it does not adhere to the inner wall surface of the tank or tank 2, and the effective amount of the non-volatile fluid 4 due to the adhesion does not deteriorate, and the sealing performance does not deteriorate. The inner peripheral wall is not soiled, and this does not deteriorate the properties of the liquid 1 to be protected.
According to the invention of claim 1, the coating 5 of the non-volatile fluid 4, and according to the invention of claim 2, the non-volatile fluid 4 covering a large number of floats 6 and the gaps between these floats Therefore, it is possible to accurately seal the liquid level of the liquid 1 to be protected, such as spring water and drainage, by 90% or more, and they can follow the change of the liquid level without breaking the seal even if the liquid level fluctuates. At the same time, the oscillation is not suppressed by the viscosity of the non-volatile fluid 4 and air is not embraced. Therefore, it is possible to sufficiently prevent oxygen from entering the liquid 1 to be protected from the liquid surface. In addition, the oxidation of the oxidizable substance such as iron ions contained in the protection target liquid 1 can be appropriately suppressed, and the blockage of the piping and the system equipment can be sufficiently prevented. Of course, there is no need to clean the facility, so it does not take time and expense, and there is no need to stop the operating system equipment, so there is no problem in the operation of the facility.
Furthermore, the floating frame 3 and the float 6 can be made of synthetic resin, wood, etc., and the non-volatile fluid 4 can be made of oil, liquid paraffin, etc. It does not occur and costs can be kept low.
[Brief description of the drawings]
1 is a longitudinal side view showing an embodiment according to the invention of claim 1;
FIG. 2 is a cut perspective view showing a modification of the embodiment.
FIG. 3 is a longitudinal sectional side view of an essential part showing an embodiment according to the invention of claim 2;
FIG. 4 is a cutaway perspective view of a main part in the same embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Liquid to be protected 2 ... Tank or tank 3 ... Floating frame 4 ... Non-volatile fluid 5 ... Coating 6 ... Float 7 ... Insertion pipe 8 ... Main frame 9 ... Auxiliary frame 10 ... Frame

Claims (2)

In a tank or tank 2 that stores spring water, drainage, or other liquid to be protected that requires oxidation prevention, it is loosely fitted to the inner peripheral wall of the tank or tank and floats on the liquid surface of the liquid to be protected 1 An antioxidant liquid level sealing method characterized by comprising a frame 3 and a coating 5 made of a non-volatile fluid 4 covering the surface of the liquid 1 to be protected in the floating frame. In a tank or tank 2 that stores spring water, drainage, or other liquid to be protected that requires oxidation prevention, it is loosely fitted to the inner peripheral wall of the tank or tank and floats on the liquid surface of the liquid to be protected 1 An interior of the frame 3 is arranged, and a large number of small floats 6 are arranged in the floating frame so as to float on the liquid surface of the liquid 1 to be protected, and gaps between these floats are covered with a non-volatile fluid 4. Antioxidant liquid level sealing method.

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