WO2012050300A1

WO2012050300A1 - Apparatus for decreasing volatile organic components

Info

Publication number: WO2012050300A1
Application number: PCT/KR2011/006393
Authority: WO
Inventors: 주광일
Original assignee: 탱크테크 주식회사
Priority date: 2010-10-11
Filing date: 2011-08-30
Publication date: 2012-04-19
Also published as: CN103079950A; KR101160181B1; KR20120037112A; CN103079950B

Abstract

The present invention relates to an apparatus for decreasing volatile organic components. The apparatus for decreasing volatile organic components includes a drop pipe vertically disposed within an oil tank of a vessel, a chamber disposed on an upper end of the drop pipe, and an oil loading pipe connected to the chamber. The chamber includes an external container having a cylindrical shape, an internal container disposed in an inner center of the external container to form a double pipe, a distribution guide disposed on an inner upper end of the external container to distribute supplied oil into a space between the external container and internal container, a connection port disposed on an upper end of the external container, the connection port being connected to the oil loading pipe, and first and second drop guides disposed between the external container and the internal container, the first and second drop guides having spiral shapes from an upper end of the chamber toward a lower end of the chamber and having a phase difference with respect to each other.

Description

Volatile Organic Compound Reduction Device

The present invention relates to an apparatus for reducing volatile organic compounds, and more particularly, to an apparatus for reducing volatile organic compounds to smoothly discharge volatile organic compounds generated when oil is filled in an oil tank of a ship to prevent marine pollution. .

In general, volatile organic compounds (VOC) are carbon compounds except carbon monoxide, carbon dioxide, carbonic acid, metallic carbonates and ammonium. It is a chemical.

Representative materials include 318 kinds of photochemical reactions such as benzene, toluene, propane, butane, nucleic acid, etc., which are larger than ethane, and petrochemical products and organic solvents having a vacuum pressure of 1.5 psia or more.

These VOCs are not only widely used as solvents throughout the industry, but also are contained in a large amount in organic gases emitted from semiconductor manufacturing processes, auto coating processes, chemical and pharmaceutical plants.

VOC is not only a toxic compound but also a whole structure of photochemical oxide, a stratospheric ozone depleting substance, and a material affecting global warming.

In addition, in the case of ships, VOC mixed with oil is generated in the process of filling oil into the oil tank, which causes the destruction of the marine ecosystem.

For example, VOC is easily generated under normal temperature / atmospheric pressure due to its low saturated steam pressure (isolated in oil mixed condition), and is supplied to oil tanks in ships by loading pipes from onshore oil storage or other facilities. It is supplied in a large amount contained inside the oil, and a large amount of vacuum is also generated when the oil falls vertically while filling the oil tank.

For this reason, the development of the technology for reducing VOC also in a ship is calculated | required.

The present invention has been made in view of the above-mentioned problems in the prior art, and was created to solve this problem. When the oil is supplied from the land on the ship to fill the oil in the oil tank in the ship, the volatile organic oil is mixed and supplied to the oil during filling. The main object of the present invention is to provide an apparatus for reducing volatile organic compounds, which can be improved to prevent marine pollution by minimizing the generation of compounds.

The present invention is a means for achieving the above object, comprising a drop pipe installed perpendicular to the oil tank of the ship, a chamber installed on top of the drop pipe, and the oil loading pipe connected to the chamber, the chamber, A cylindrical outer cylinder, an inner cylinder installed at an inner center of the outer cylinder to form a double pipe, a distribution guide for distributing oil formed at the upper end of the outer cylinder between the outer cylinder and the inner cylinder and into the inner cylinder, and at the upper end of the outer cylinder And a first and second drop guides formed between the outer and inner cylinders and connected to the oil loading pipe and formed in a spiral shape from the upper end to the lower end of the chamber and provided with a phase difference from each other. Provided is a volatile organic compound reduction device.

At this time, the phase difference is also characterized by 180 °.

In addition, the present invention includes a drop pipe installed perpendicular to the oil tank of the ship, a chamber installed on the top of the drop pipe, and the oil loading pipe connected to the chamber, the chamber is a cylindrical outer cylinder, the outer cylinder An inner cylinder installed at an inner center to form a double pipe, a connector provided at a portion of an outer circumferential surface of the outer cylinder and connected to the oil loading pipe to distribute and supply oil supplied between the outer cylinder and the inner cylinder and toward the inner cylinder, and between the outer cylinder and the inner cylinder It is formed and formed in a spiral from the top of the chamber toward the lower end of the volatile organic compound reduction device, characterized in that consisting of the first and second falling guides provided with a phase difference from each other.

According to the present invention, when filling and supplying oil to a ship, the chamber and its structure having a considerably larger diameter than the oil loading pipe minimize the generation of volatile organic compounds by minimizing the generation of volatile organic compounds, and the volatile organic matter contained in the oil. By maximizing the flow of the compound to be discharged in the form of bubbles it is possible to obtain the effect of preventing marine pollution caused by the operation of the vessel.

1 is a schematic view showing the concept of a volatile organic compound reduction device according to the present invention.

Figure 2 is an exemplary view showing an example of a chamber constituting the volatile organic compound reduction device according to the present invention.

Figure 3 is an exemplary view showing another example of the chamber constituting the volatile organic compound reduction device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

As shown in Figure 1, the volatile organic compound reduction device according to the present invention is installed in the oil tank (100).

The oil tank 100 is an oil storage tank provided in a ship in order to receive oil stored in an oil reservoir (not shown) or other facilities on the land and use it as fuel required for the operation of the ship.

A drop pipe 110 is vertically installed in the oil tank 100, and a chamber 120 is installed at an upper end of the drop pipe 110.

The chamber 120 is a container that performs a kind of buffering function, and has a structure specially designed to prevent a vacuum phenomenon generated during oil supply, which will be described in detail later.

In addition, an oil loading pipe 130 is connected to the chamber 120, and the oil loading pipe 130 is connected to an oil storage tank or other oil supply facility on land.

In addition, a safety valve 140 is generally installed at a portion of the upper end of the oil tank 100.

The safety valve 140 is automatically opened when the internal pressure increases when oil is introduced into the tank from the oil loading pipe 130 to discharge the VOC staying in the atmosphere.

At this time, the internal pressure increase generated by the inflow of oil is a natural phenomenon, but can not be prevented, but the internal pressure increase generated by the inflow of VOC can be prevented by the chamber 120, thereby reducing the number of operations of the safety valve 140. The possibility of polluting the environment by releasing VOCs into the atmosphere can be significantly reduced.

On the other hand, the chamber 120 may have the same shape as the embodiment shown in FIG.

The chamber 120 according to the present invention has a cylindrical shape and forms an outer cylinder 121, an inner cylinder 122 installed at an inner center of the outer cylinder 121, and forming a double tube, and an inner portion of the outer cylinder 121. A distribution guide 123 formed at an upper end, a connector 124 provided at an upper end of the outer cylinder 121 and connected to the oil loading pipe 130, and formed between the outer cylinder 121 and the inner cylinder 122; It is formed of a pair of first and second falling guides (125, 126) formed in a spiral shape from the upper end of the chamber 120 toward the lower end with a phase difference from each other.

At this time, the lower end of the outer cylinder 121 is connected to the upper end of the drop pipe 110, the phase difference of the first and second falling guides (125, 126) is preferably 180 °.

Herein, the first and second falling

guides

125 and 126 have been described by borrowing terms used in physics waves such as 'phase difference' that structures having the same shape are installed at intervals of 180 °, but this is for convenience of explanation and understanding. It is intended to precisely mean that the two structures having the same shape and size are installed spaced apart by 180 ° in the radial direction of the outer cylinder 121.

In addition, the connector 124 is formed on the upper end of the outer cylinder 121, the distribution guide 123 is to evenly drop the oil dropped from the connector 124 toward the first and second drop guides (125, 126). The oil is dispersed so that the oil falls into the drop pipe 110 while rotating radially in the first and second falling

guides

125 and 126 without directly falling in the vertical direction.

In particular, the chamber 120, that is, the outer cylinder 121 is formed to have a diameter very large than the diameter of the oil loading pipe 130 and the drop pipe 110 to perform a kind of buffer function, that is, a buffer function. This is because when the oil supplied from the oil loading pipe 130 having the same diameter falls vertically through the drop pipe 110 as in the prior art, since the drop speed by gravity is greater than the supply speed, a vacuum is generated at this time. This is to block the occurrence of VOCs soaring.

That is, in the chamber 120 according to the present invention, the oil supplied from the oil loading pipe 130 is buffered and drops in a state in which the flow velocity is slowed along the spiral first and second drop guides 125 and 126 (because the residence time becomes long). The vacuum is not generated due to the air inside the chamber 120 having a relatively large diameter even though the vacuum is generated due to the flow rate difference due to gravity during the supply of the pipe 110.

Therefore, VOC generation is suppressed as much.

In addition, since the inner cylinder 122 is formed of a straight pipe, some oil (small amount) supplied to the inner cylinder 122 is vertically dropped, and the first and

second drop guides

125 and 126 are disposed at the ends of the outer cylinder 121. The three types of oil, such as the oil that is supplied with a time difference and the oil that has been vertically dropped through the inner cylinder 122, are mixed with each other to induce the rise of bubbles and collect at the upper end of the chamber 120, so that the VOC is inside the oil tank 100. Does not flow into and reduces the number of operations of the safety valve 140, brings the effect of VOC emissions reduction.

In other words, the VOC gathered in the upper chamber 120 is isolated due to the oil filled in the lower part, and the pressure is increased when the oil level of the oil inside the oil tank 100 rises. Since the phase change to the oil at the top 120, there is almost no VOC flowing into the oil tank 100 eventually.

As such, in the present invention, when the oil is supplied to the oil tank 100 in the ship, the vacuum is generated so that the VOC generated by the vacuum phenomenon in the drop pipe 110 is not deeply filled with the oil to the oil tank 100. By blocking the air bubbles introduced due to the vortex and the area ratio to the upper portion of the chamber 120 to transfer only the pure liquid oil into the tank to minimize the residual amount of VOC on the oil inside the oil tank 100 do.

As another example, as shown in FIG. 3, the connector 124 may be formed to the side of the outer cylinder 121.

In the example of FIG. 3, the rest of the configuration other than the deformable structure in which the connector 124 is formed on the side is the same, and the same operation and effect as the above-described embodiment can be obtained.

In addition, the distribution guide 123 described above may be excluded in the example of FIG. 3 because the distribution effect may be naturally obtained without the distribution guide 123 due to the supply pressure of the oil supplied from the side.

Of course, the distribution guide 123 will be able to be more efficient processing.

Claims

Drop pipe 110 is installed perpendicular to the oil tank 100 of the vessel, the chamber 120 is installed on the top of the drop pipe 110, the oil loading pipe 130 and the oil connected to the chamber 120 Including a safety valve 140 installed on the top of the tank 100,

The chamber 120,

A cylindrical outer cylinder 121 having a larger diameter than the oil loading pipe 130, an inner cylinder 122 installed at an inner center of the outer cylinder 121 to form a double pipe, and an inner upper end of the outer cylinder 121. A distribution guide 123 for distributing the formed and supplied oil between the outer cylinder 121 and the inner cylinder 122 and the inner cylinder 122, and provided at an upper end of the outer cylinder 121 and connected to the oil loading pipe 130. First and second drop guides 125 and 126 formed between the outer tube 121 and the inner cylinder 122 and formed in a spiral shape from the upper end of the chamber 120 toward the lower end thereof with a phase difference therebetween. The volatile organic compound reduction device, characterized in that consisting of.
The method according to claim 1;

The phase difference is 180 ° volatile organic compound reduction device, characterized in that.
Drop pipe 110 is installed perpendicular to the oil tank 100 of the vessel, the chamber 120 is installed on the top of the drop pipe 110, the oil loading pipe 130 and the oil connected to the chamber 120 Including a safety valve 140 installed on the top of the tank 100,

The chamber 120,

A cylindrical outer cylinder 121 having a larger diameter than the oil loading pipe 130, an inner cylinder 122 installed at an inner center of the outer cylinder 121 to form a double pipe, and a portion of an outer circumferential surface of the outer cylinder 121. A connector 124 provided and connected to the oil loading pipe 130 to supply and distribute oil between the outer cylinder 121 and the inner cylinder 122 and toward the inner cylinder 122, and the outer cylinder 121 and the inner cylinder 122. And a first and second drop guides (125, 126) formed between the top and bottom of the chamber (120) formed in a spiral shape from the top to the bottom with the phase difference therebetween.