KR20230069576A - Safety water sealing system - Google Patents

Abstract

The present invention relates to a water-sealed system, and according to one aspect of the present invention, the water-sealed system includes: a fuel gas pipe through which fuel gas is transported, a part of which is bent downward to have a “U” or “V” shape; a purified water pipe supplying purified water to the fuel gas pipe; a purified water drain pipe through which purified water is drained from the fuel gas pipe; a condensate storage for temporarily storing the purified water drained from the purified water drain pipe; a purified water overflow drain pipe connected to the condensate storage; a purified water overflow pipe through which purified water overflowed from the connection gas pipe is transported; and a purified water connection pipe connecting the purified water overflow drain pipe and the purified water overflow pipe.

Description

Safety water sealing system {SAFETY WATER SEALING SYSTEM}

The present invention relates to a water-sealed system, and more particularly, to a safety water-sealed system capable of preventing harmful gas from leaking.

Byproduct gas generated during the process of producing iron at the steelworks is used to produce power used in the steelworks through byproduct gas power generation. Through this by-product gas power generation, the proportion of self-generation in steelworks increases and the proportion of power generation decreases. The by-product gas is delivered through the gas pipe to the burner placed inside the power generation boiler used for by-product gas power generation. “It is a system that forms a gas pipe in the shape of a ruler and blocks the movement of gas by filling the part with purified water.

As shown in FIG. 1, in the conventional water sealing system 10, a "V" shaped fuel gas pipe 11 is disposed, a gas inlet 11a is disposed at one end, and a gas discharge unit at the other end. (11b) is placed. In addition, a purified water pipe 12 is disposed at the bottom so that purified water flows in, and the purified purified water flows into the fuel gas pipe 11 through the first purified water valve V1, the bypass valve V2, and the second purified water valve V3. supplied with

In addition, a purified water drain pipe 13 through which purified water is drained is connected to the lower end of the fuel gas pipe 11, and a first drain valve V4 and a second drain valve V5 are disposed in the purified water drain pipe 13. A condensate storage 16 may be disposed below the purified water drain pipe 13. In addition, a purified water overflow drain pipe 14 may be disposed in the condensate storage 16 .

A purified water overflow pipe 15 is connected to the upper end of the fuel gas pipe 11, and an overflow valve V6 is disposed in the purified water overflow pipe 15. In addition, a water storage reservoir 17 is disposed to store wastewater discharged from the purified water overflow drain pipe 14 and the purified water overflow pipe 15 .

At this time, in order to perform the water sealing work of the gas pipe, since the operator must manually operate the overflow valve (V6) located at a high place, there is a risk of falling, and also, if harmful gas leaks, poisoning due to harmful gas There is a risky problem that causes the phenomenon to occur.

Furthermore, there is a problem in that the overflow of the purified water may occur, and the efficiency of the field work is reduced due to the delay in the water sealing time.

Republic of Korea Utility Model Publication No. 20-1998-0008838 (1998.04.30.) Republic of Korea Registered Utility Model No. 20-0352304 (May 25, 2004) Republic of Korea Patent No. 10-1949050 (2019.02.11.)

Embodiments of the present invention have been invented against the above background, and when performing a water sealing operation of blocking a fuel gas pipe using purified water, an operator does not have to operate a valve located at a high place to provide a safety water sealing system. .

According to one aspect of the present invention, the water-sealed system includes: a fuel gas pipe having a "U" or "V" shape by which fuel gas is transported and a portion of which is bent downward; a purified water pipe supplying purified water to the fuel gas pipe; a purified water drain pipe through which purified water is drained from the fuel gas pipe; a condensate storage for temporarily storing the purified water drained from the purified water drain pipe; a purified water overflow drain pipe connected to the condensate storage; a purified water overflow pipe through which purified water overflowed from the connection gas pipe is transported; and a purified water connection pipe connecting the purified water overflow drain pipe and the purified water overflow pipe.

a first water purification valve installed in the purified water pipe and controlling the supply of purified water; a first drain valve installed in the purified water overflow drain pipe and controlling the drainage of purified water in the fuel gas pipe; and a leak prevention valve installed in the purified water overflow drain pipe to prevent the purified water from leaking through the purified water overflow drain pipe.

The purified water overflow pipe may include an upper end of the pipe disposed at the top of the purified water overflow pipe, and a scattering hole through which gas dissolved in the purified water contained in the fuel gas pipe is discharged may be formed at a position adjacent to the upper end of the pipe. .

The scattering hole may be formed on a side surface of the purified water overflow pipe.

The purified water overflow pipe may further include a pipe end disposed at an end of the purified water overflow pipe, and the pipe end may have a shape in which a diameter decreases toward an end of the purified water overflow pipe.

A purified water storage tank for storing purified water discharged from the purified water overflow pipe may be further included.

The purified water storage tank may include a purified water container receiving purified water discharged from the purified water overflow pipe.

a bypass pipe installed in the purified water pipe; and a bypass valve installed in the bypass pipe.

When the fuel gas pipe is filled with purified water and the water seal is performed, the first water purification valve and the leak prevention valve may be closed, and the bypass valve and the first drain valve may be opened.

When the water seal through which purified water is discharged into the fuel gas pipe is released, the first water purification valve and the bypass valve may be closed, and the first drain valve and the leak prevention valve may be opened.

In one embodiment of the present invention, safety accidents such as falling can be prevented in advance by preventing workers from working at high positions without introducing new facilities through changes in the existing structure.

In addition, since the operator does not have to directly operate the valve, the risk of exposure to harmful gases can be prevented in advance.

1 is a view showing a conventional water sealing system.
2 is a diagram illustrating a water-sealing system according to an embodiment of the present invention.
3 is a view showing a state in which the sealing of the sealing system according to an embodiment of the present invention is performed.
4 is a diagram for explaining a procedure for performing a water sealing of a water sealing system according to an embodiment of the present invention.
5 is a view showing a state in which the water seal of the water seal system according to an embodiment of the present invention is released.
6 is a diagram for explaining a sealed release procedure of a sealed system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art to which the present invention belongs. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly explain the present invention, parts irrelevant to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated for convenience. Like reference numbers indicate like elements throughout the specification.

A water-sealing system 100 according to an embodiment of the present invention will be described with reference to FIGS. 2 to 6 . The water sealing system 100 according to an embodiment of the present invention includes a fuel gas pipe 110, a purified water pipe 120, a purified water drain pipe 130, a purified water overflow drain pipe 140, a purified water overflow pipe 150, It includes a purified water connection pipe 160, a condensed water storage 170, and purified water storage. The water seal system 100 is a system for blocking the flow of fuel gas flowing through the fuel gas pipe 110 by a water seal.

The fuel gas pipe 110 has a shape where fuel gas is introduced through the gas inlet 110a, a portion of which is bent downward, and the gas outlet 110b via a "U" or "V" shape. The fuel gas is discharged through Such fuel gas is a by-product gas generated during the process of producing iron in a steel mill, and includes carbon monoxide (CO) gas.

The purified water pipe 120 is connected to the fuel gas pipe 110 to supply purified water so that water can be filled in a “V” shape to block the flow of gas in the fuel gas pipe 110 by a water rod.

A bypass pipe 122 is disposed in the purified water pipe 120, and the bypass pipe 122 is disposed to prevent the water seal from being released when a small amount of purified water is supplied to the fuel gas pipe 110. A first water purification valve V1 and a second water purification valve V3 are installed in the purified water pipe 120 to control the purified water supplied so that the water seal can be made in the fuel gas pipe 110, and also the bypass pipe ( 122) is installed with a bypass valve (V2).

The first purified water valve V1 is used to control the supply of purified water, and the second purified water valve V3 is used to be closed when the purified water pipe 120 is damaged or needs to be repaired and the supply of purified water needs to be stopped. can The bypass valve V2 may be used to prevent the water seal from being released by supplying a small amount of purified water to the fuel gas pipe 110 .

The purified water drain pipe 130 is a pipe through which purified water is drained from the fuel gas pipe 110 to release the water seal. A first drain valve V4 and a second drain valve V5 are installed in the purified water drain pipe 130 to control the discharge of purified water through the purified water drain pipe 130 .

The lower end of the purified water overflow drain pipe 140 is disposed in the condensed water storage 170, and purified water overflowing from the condensed water storage 170 is discharged. A leak prevention valve V7 is disposed in the purified water overflow drain pipe 140 . The leakage prevention valve V7 may prevent purified water from leaking through the purified water overflow drain pipe 140 . The purified water drained through the purified water overflow drain pipe 140 may be moved to the purified water reservoir 180 .

The purified water overflow pipe 150 has one end connected to the upper end of the fuel gas pipe 110 and the other end connected to the purified water reservoir 180. The purified water overflowing from the fuel gas pipe 110 through the purified water overflow pipe 150 may be moved to the purified water storage 180 . An overflow valve V6 may be installed in the purified water overflow pipe 150 .

The overflow valve (V6) may be disposed on top of the fuel gas pipe 110, and in this embodiment, it may be kept open. That is, when the water seal is performed and during the procedure of releasing the water seal, the overflow valve V6 remains open, so that the operator may not open or close the overflow valve V6. Therefore, the overflow valve V6 can be omitted if necessary, and no further operation is required when the overflow valve V6 is previously installed.

In the purified water overflow pipe 150 , an upper end portion 152 of the pipe may be disposed at an upper end side of the fuel gas pipe 110 . The upper end of the pipe 152 is located at the uppermost end of the purified water overflow pipe 150, and a predetermined scattering hole 154 may be formed at a position adjacent to the upper end of the pipe 152. The scattering hole 154 is formed on the side of the purified water overflow pipe 150, and carbon monoxide (CO), a by-product gas dissolved in the purified water filling the fuel gas pipe 110, can be discharged. As the scattering hole 154 is formed on the side of the purified water overflow pipe 150, by-product gas can be discharged to the outside while preventing rainwater from flowing into the purified water overflow pipe 150.

As described above, as the by-product gas is discharged through the scattering hole 154, the by-product gas may not be discharged to the vicinity of the condensate storage 170 where the operator is located, so that the operator may not be exposed to the by-product gas.

In addition, the pipe end 156 is disposed at the end of the purified water overflow pipe 150, and the pipe end 156 may be formed such that its diameter decreases toward the end. As the pipe end 156 is formed to have a reduced diameter, it is possible to prevent purified water discharged through the purified water overflow pipe 150 from splashing around. Therefore, purified water is not scattered on the soil or the like by the pipe end 156 of the purified water overflow pipe 150 and can be discharged to the outside through the purified water reservoir 180 .

The purified water connection pipe 160 connects the purified water overflow drain pipe 140 and the purified water overflow pipe 150 . To this end, the purified water connection pipe 160 may have one end connected to the purified water overflow drain pipe 140 and the other end connected to the purified water overflow pipe 150 . The purified water connection pipe 160 may allow purified water overflowing in the condensate storage 170 to be transported from the purified water overflow drain pipe 140 to the purified water overflow pipe 150 when the water sealing is completed. In this way, as the purified water connection pipe 160 connects the purified water overflow drain pipe 140 and the purified water overflow pipe 150, when the water seal is released, the overflow valve V6 can be kept open without closing. there is.

The condensate storage 170 is connected to the purified water drain pipe 130 and the purified water overflow drain pipe 140 and is disposed to temporarily store condensed water discharged from the fuel gas pipe 110 . When the water seal is released, the purified water stored in the condensed water reservoir 170 may be transferred to the purified water overflow pipe 150 through the purified water overflow drain pipe 140 and the purified water connection pipe 160 and transferred to the purified water storage tank.

The purified water storage tank stores purified water overflowing from the fuel gas pipe 110 or stored purified water discharged from the condensate storage tank when the water seal is released, and stores the purified water to transport the purified water to a wastewater treatment plant. A purified water container 182 may be disposed in the purified water storage tank.

The purified water container 182 is disposed to receive purified water discharged from the purified water overflow pipe 150 and fall, and check the received purified water to determine whether the water sealing is completed.

Referring to FIGS. 3 and 4 , a state in which water sealing is applied to the fuel gas pipe 110 will be described. When the fuel gas pipe 110 is sealed with water and the fuel gas pipe 110 is filled with purified water, the first water purification valve V1 and the leak prevention valve V7 are blocked, the bypass valve V2, the second The water purification valve V3, the first drain valve V4, the second drain valve V5 and the overflow valve V6 remain open.

At this time, the purified water fills the fuel gas pipe 110 to a certain height, and the purified water pipe 120, the bypass pipe 122, the purified water drain pipe 130, the purified water overflow drain pipe 140, the purified water overflow pipe 150 And the water purification connection pipe 160 may be filled.

In the case of water sealing, as shown in FIG. 4, the leakage prevention valve V7 is shut off to prevent the purified water from being drained (①). Then, the first water purification valve V1 is opened so that purified water is supplied to the fuel gas pipe 110 through the purified water pipe 120 (②). When purified water is supplied to the fuel gas pipe 110, purified water overflows in the fuel gas pipe 110 to become the purified water overflow pipe 150, so that the purified water overflow pipe 150 is connected to the pipe end 156. Check that is discharged (③).

Then, the bypass pipe 122 is partially opened so that a small amount of purified water is supplied to the fuel gas pipe 110 through the purified water pipe 120 (④). When the bypass pipe 122 is partially opened, the first water purification valve V1 is closed so that purified water overflows from the fuel gas pipe 110 and is not transported beyond the bent shape to another location (⑤).

Meanwhile, with reference to FIGS. 5 and 6 , a state in which the water seal of the fuel gas pipe 110 is disconnected will be described. When the water seal in the fuel gas pipe 110 is released, the first water purification valve V1 and the bypass valve V2 are blocked, the second water purification valve V3, the first drain valve V4, and the second drain valve (V5), the overflow valve (V6) and the leak-proof valve (V7) remain open.

At this time, the purified water fills the purified water pipe 120 at the top of the first purified water valve V1 and the bypass valve V2, and the purified water drain pipe 130, the purified water overflow drain pipe 140, and the purified water overflow pipe 150 And the water purification connection pipe 160 may be filled.

When the water seal is to be released, as shown in FIG. 6 , the leak prevention valve V7 is opened to confirm that purified water overflows in the fuel gas pipe 110 (①). When it is confirmed that the purified water does not overflow through the leakage prevention valve (V7), the bypass valve (V2) is closed (②). As the bypass valve V2 is closed, purified water may no longer be supplied to the fuel gas pipe 110 through the purified water pipe 120 .

As described above, as the bypass valve V2 is closed, the purified water in the fuel gas pipe 110 is drained through the purified water drain pipe 130, and the condensed water storage 170, the purified water overflow drain pipe 140, and the purified water connection pipe 160 and the purified water overflow pipe 150 may be drained to the purified water reservoir 180.

100: Subong system
110: fuel gas piping
110a: gas inlet 110b: gas outlet
120: purified water piping 122: bypass piping
130: purified water drain pipe 140: purified water overflow drain pipe
150: clean water overflow pipe 152: upper part of pipe
154: scattering hole 156: pipe end
160: purified water connector 170: condensate reservoir
180 purified water reservoir 182 purified water container
V1: first water purification valve V2: bypass valve
V3: second water purification valve V4: first drain valve
V5: Second drain valve V6: Overflow valve
V7: Leak-proof valve

Claims (10)

A fuel gas pipe having a “U” or “V” shape, through which fuel gas is transported, and a portion thereof is bent downward;
a purified water pipe supplying purified water to the fuel gas pipe;
a purified water drain pipe through which purified water is drained from the fuel gas pipe;
a condensate storage for temporarily storing the purified water drained from the purified water drain pipe;
a purified water overflow drain pipe connected to the condensate storage;
a purified water overflow pipe through which purified water overflowed from the connection gas pipe is transported; and
Including a purified water connection pipe connecting the purified water overflow drain pipe and the purified water overflow pipe,
water seal system. According to claim 1,
a first water purification valve installed in the purified water pipe and controlling the supply of purified water;
a first drain valve installed in the purified water overflow drain pipe and controlling the drainage of purified water in the fuel gas pipe; and
Further comprising a leak prevention valve installed in the purified water overflow drain pipe and preventing the purified water from leaking through the purified water overflow drain pipe.
water seal system. According to claim 1,
The purified water overflow pipe includes an upper end of the pipe disposed at the top of the purified water overflow pipe,
A scattering hole through which gas dissolved in purified water accommodated in the fuel gas pipe is discharged is formed at a position adjacent to the upper end of the pipe,
water seal system. According to claim 3,
The scattering hole is formed on the side of the purified water overflow pipe,
water seal system. According to claim 1,
The purified water overflow pipe further includes a pipe end disposed at an end of the purified water overflow pipe,
The pipe end has a shape in which the diameter decreases toward the end of the purified water overflow pipe.
water seal system. According to claim 1,
Further comprising a purified water storage tank for storing purified water discharged from the purified water overflow pipe,
water seal system. According to claim 6,
The purified water storage tank includes a purified water container receiving purified water discharged from the purified water overflow pipe.
water seal system. According to claim 2,
a bypass pipe installed in the purified water pipe; and
Further comprising a bypass valve installed in the bypass pipe,
water seal system. According to claim 8,
When purified water is filled in the fuel gas pipe and the water seal is performed, the first water purification valve and the leak prevention valve are closed, and the bypass valve and the first drain valve are opened.
water seal system. According to claim 9,
When the water seal through which purified water is discharged into the fuel gas pipe is released, the first water purification valve and the bypass valve are closed, and the first drain valve and the leak prevention valve are opened.
water seal system.

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