JP5825031B2 - Aqueous piping - Google Patents

Description

  The present invention relates to a water safety pipe for supplying water to a spray nozzle for jetting water.

  The coke oven gas generated in the carbonization chamber when coke is produced in the coke oven is as high as about 800 ° C. When such high-temperature coke oven gas is directly supplied to the coke oven gas utilization facility, piping and utilization facility for supplying the coke oven gas may be damaged. For this reason, in the coke oven, a spray nozzle is installed in the bend part connecting the riser pipe formed in the ceiling part of the carbonization chamber and the dry-men piping for supplying the coke oven gas to the coke oven gas utilization equipment. The coke oven gas and the inner wall portion of the bend are cooled by injecting water. However, generally, the water that is sprayed from the spray nozzle is obtained by reusing the water produced during the cooling process of the coke oven gas. For this reason, when the aqueous water is supplied to the spray nozzle, the spray nozzle may be blocked by a tar component contained in the aquatic water. From such a background, the technique which isolate | separates efficiently the water component and the tar component contained in a water has been proposed conventionally (refer patent documents 1-7).

Japanese Patent Laid-Open No. 58-27606 JP 58-124447 A JP 59-36526 A Japanese Patent Laid-Open No. 2-17203 Japanese Patent Laid-Open No. 3-138535 JP-A-6-136366 JP 2010-209159 A

  By the way, there are two types of pipes for supplying low water to the spray nozzle: low-pressure water pipes for supplying low-pressure water and high-pressure water pipes for supplying high-pressure water. The low pressure low-pressure water supplied from the low-pressure low-pressure water pipe is sprayed onto the inner wall surface of the bend portion by the spray nozzle, thereby cooling the inner wall surface of the bend portion and attaching tar components to the inner wall surface of the bend portion. Suppress. On the other hand, the high-pressure aqueduct supplied from the high-pressure aqueduct piping is injected into the coke oven gas by the spray nozzle, thereby cooling the coke oven gas and sucking the coke oven gas toward the dry membrane piping by the ejector effect. However, according to the structure of such a water-relief pipe, the tar component stays at the bottom of the water-relief pipe, and the aggregated tar component is supplied from the water-relief pipe to the spray nozzle even if it is in the form of a mass or liquid. As a result, the spray nozzle may be blocked. In particular, in low-pressure water safety pipes, the flow rate of the safe water is slower than the flow speed of safe water in the high-pressure water safety pipe, so tar components with a specific gravity of about 1.1 to 1.3 tend to settle at the bottom of the pipe. Occlusion is likely to occur.

  This invention is made | formed in view of the said subject, The objective is to provide the water-proof piping which can suppress the obstruction | occlusion of the spray nozzle by a tar component.

  In order to solve the above-described problems and achieve the object, the water-safe piping according to the present invention is a water-safe piping that supplies water to a spray nozzle that injects water, and the horizontal water flows through the water. A main pipe extending in a direction; and a take-out pipe formed on a side wall portion or an upper portion of the main pipe for supplying the sprayed water to the spray nozzle.

  The water-safe piping according to the present invention is characterized in that, in the above-mentioned invention, a tar removal pipe provided at the bottom of the main pipe for discharging the tar component staying at the bottom of the main pipe is provided. To do.

  The water safety pipe according to the present invention is characterized in that, in the above invention, the water safety pipe includes a control valve that is provided in the tar removal pipe and controls a flow rate of the safe water flowing through the tar removal pipe.

  According to the water-safe piping according to the present invention, the spray nozzle can be prevented from being blocked by the tar component.

FIG. 1 is a perspective view showing a configuration of a coke oven to which a water-resistant pipe according to an embodiment of the present invention is applied. FIG. 2 is a cross-sectional view showing the configuration of the riser pipe and the dry main pipe shown in FIG. FIG. 3 is a schematic diagram showing the configuration of the low-pressure water-proof pipe and the high-pressure water-proof pipe. FIG. 4 is a cross-sectional view showing a configuration of a low-pressure water-safe piping that is one embodiment of the present invention. FIG. 5 is a cross-sectional view showing a configuration of a modified example of the low-pressure water-safe piping that is one embodiment of the present invention. FIG. 6 is a cross-sectional view showing the configuration of the low-pressure water-proof pipe at the end of the main pipe or at a predetermined position.

  Hereinafter, with reference to drawings, the structure of the water-proof piping which is one Embodiment of this invention is demonstrated.

[Composition of coke oven]
First, with reference to FIG. 1 thru | or FIG. 3, the structure of the coke oven to which the safety piping which is one Embodiment of this invention is applied is demonstrated. FIG. 1 is a perspective view showing an example of the configuration of a coke oven to which a water-safe piping according to an embodiment of the present invention is applied. FIG. 2 is a cross-sectional view showing the configuration of the riser pipe and the drymen pipe shown in FIG. FIG. 3 is a schematic diagram showing the configuration of the low-pressure water-proof pipe and the high-pressure water-proof pipe.

  As shown in FIG. 1, a coke oven 1 to which a water-safe piping according to an embodiment of the present invention is applied includes a plurality of carbonization chambers 2 and combustion chambers 3. The plurality of carbonization chambers 2 and the combustion chambers 3 are alternately arranged in the upper part of a heat storage chamber (not shown), and a plurality of charring ports 4 are formed in the ceiling portion of each carbonization chamber 2. The plurality of coal charging ports 4 are for charging the coal transported by the coal-carrying car 5 traveling on the upper part of the coke oven 1 into the carbonizing chamber 2. Coal charged into the carbonization chamber 2 from the coal charging port 4 is dry-distilled by receiving heat from the adjacent combustion chamber 3, becomes red hot coke, and is extruded from the carbonization chamber 2 by the extruder 6. The red hot coke pushed out from the carbonization chamber 2 is transferred to a fire extinguisher (not shown) via a guide car (not shown), and is conveyed to a red hot coke fire extinguishing equipment (not shown) by the fire extinguisher (not shown).

  The coke oven gas generated in the carbonization chamber 2 as a result of dry distillation is sucked into the dry-men pipe 8 that is a collecting pipe through the rising pipe 7 provided in the ceiling portion of the carbonization chamber 2, and the coke oven gas is used in the facility that uses the coke oven gas. Be transported. As shown in FIG. 2, the ascending pipe 7 and the drymen pipe 8 are connected via a bend pipe 9. The bend pipe 9 includes a cooling spray nozzle 11 and a wet wall spray nozzle 12.

  As shown in FIG. 3, the cooling spray nozzle 11 is connected to the high-pressure water-safe pipe 15 through the control valve 13 b and the three-way valve 14, and the high-pressure water that circulates in the high-pressure water-proof pipe 15 is fed into the bend pipe 9. Of coke oven gas. By injecting water into the coke oven gas from the cooling spray nozzle 11, the coke oven gas is cooled from about 400 to 600 ° C. to about 90 ° C., and becomes a gas liquid of coal, coal tar, and ammonia water. Further, the coke oven gas in the ascending pipe 7 is sucked into the dry men pipe 8 by the ejector effect by injecting the cold water from the cooling spray nozzle 11 to the coke oven gas. The three-way valve 14 is connected to the low-pressure water-safe piping 16 through the control valve 13c, and can control the supply amount of high-pressure water to the cooling spray nozzle 11 by controlling the opening degree of the control valve 13c. Has been. The control valves 13a to 13c may be on-off valves that can supply / shut off water.

  The wet wall spray nozzle 12 is connected to the low-pressure water-safe piping 16 through the control valve 13 a and injects the low-pressure water-water flowing through the low-pressure water-safe piping 16 onto the inner wall surface of the bend portion 9. By jetting water-resistant water onto the inner wall surface of the bend pipe 9 from the wet wall spray nozzle 12, it is possible to cool the bend pipe 9 and prevent carbon from adhering to the inner wall of the bend pipe 9.

  By the way, in the coke oven 1 having such a configuration, the tar component stays in the inner bottom portion of the low-pressure water-proof pipe 16, and the aggregated tar component is wetted from the low-pressure water-proof pipe 16 even if it is in a lump or liquid form. By being supplied to the spray nozzle 12, the wet wall spray nozzle 12 may be blocked. Therefore, in the coke oven 1 which is one embodiment of the present invention, the tar component is supplied from the low pressure water-resistant pipe 16 to the wet wall spray nozzle 12 by configuring the low-pressure water-resistant pipe 16 as shown below. Suppress. Hereinafter, with reference to FIG. 4 thru | or FIG. 6, the structure of the low-pressure water-safe piping 16 in the coke oven 1 which is one Embodiment of this invention is demonstrated.

[Configuration of low-pressure water-proof piping]
FIG. 4 is a cross-sectional view showing a configuration of a low-pressure water-safe piping that is one embodiment of the present invention. FIG. 5 is a cross-sectional view showing a configuration of a modified example of the low-pressure water-safe piping that is one embodiment of the present invention. As shown in FIG. 4, the low-pressure water-resistant pipe 16 according to one embodiment of the present invention includes a cylindrical main pipe 16 a through which low-pressure low-pressure water flows, and a wet wall spray formed on the side wall of the main pipe 16 a. The nozzle 12 is provided with a falling pipe 16b for supplying the water in the main pipe 16a to the nozzle 12. The falling pipe 16 functions as a take-out pipe according to the present invention. According to such a configuration of the low-pressure water-proof pipe 16, the falling pipe 16b is formed on the side wall portion of the main pipe 16a, so that tar components staying at the inner bottom of the low-pressure water-proof pipe 16 are fallen. It is possible to prevent the tar component from being supplied to the wet wall spray nozzle 12 from the low-pressure water-resistant pipe 16 without flowing into the water.

  Note that the cooling spray nozzle 11 may also be blocked by the tar component. However, the nozzle diameter of the cooling spray nozzle 11 is larger than the nozzle diameter of the wet wall spray nozzle 12, and the cooling spray nozzle 11 injects high pressure, in other words, low-flow water with a high flow rate, than the wet wall spray nozzle 12. Therefore, the cooling spray nozzle 11 is less likely to be blocked by the tar component than the wet wall spray nozzle 12. For this reason, the cooling spray nozzle 11 may be provided with a falling pipe 16 b similar to the wet wall spray nozzle 12.

  Further, the falling pipe 16b may be formed at a position where the staying tar component does not flow, and may be formed at the upper part of the main pipe 16a as shown in FIG. 5, for example. The configuration of the falling pipe 16b shown in FIG. 4 or FIG. 5 is a pipe configuration (pipe A shown in FIG. 3) for supplying water to the wet wall spray nozzle 12; As shown in FIG. 6, the falling pipe 16b may be formed at the bottom of the main pipe 16b in the portion where the water is directly supplied. Such a falling pipe 16b can be arranged at the end of the main pipe 16a or at a predetermined position (pipe B, pipe B 'shown in FIG. 3). According to such a configuration, the tar component staying at the bottom of the main pipe 16a can be directly discharged to the drymen pipe 8, and the staying tar component can be prevented from overflowing to the falling pipe 16b side. Further, the falling pipe 16b as shown in FIG. 6 is provided with a control valve 13d (see FIG. 3), and the opening of the control valve 13d is manually or automatically controlled to stay at the bottom of the main pipe 16a. It is desirable to ensure that the tar component that is present can be discharged to the drymen piping 8 side. In this case, it is desirable that the diameter of the pipe B ′ (see FIG. 3) connected to both ends of the dry men pipe 8 is larger than the diameters of the other pipes. According to such a configuration, the tar component staying at the bottom of the main pipe 16a can be more reliably discharged to the drymen piping 8 side.

  Although the embodiment to which the invention made by the present inventor is applied has been described above, the present invention is not limited by the description and the drawings that form a part of the disclosure of the present invention according to this embodiment. That is, other embodiments, examples, operational techniques, and the like made by those skilled in the art based on the present embodiment are all included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Coke oven 2 Coking chamber 3 Combustion chamber 4 Charging port 5 Charging car 6 Extruder 7 Rising pipe 8 Drymen piping 9 Bend piping 11 Cooling spray nozzle 12 Wet wall spray nozzles 13a, 13b, 13c, 13d Control valve 14 Three-way valve 15 High pressure safety piping 16 Low pressure safety piping 16a Main 16b Falling piping

Claims (1)

A safety pipe that supplies safety water to a spray nozzle that injects safety water,
A main pipe extending in the horizontal direction through which the water is distributed;
A pipe for taking out formed on a side wall or an upper part of the main pipe, which supplies the spray water to the spray nozzle with water flowing through the main pipe,
A tar removal pipe formed at the bottom of the main pipe for discharging tar components remaining at the bottom of the main pipe,
The tar removal pipe is provided with a control valve that is connected to an end of a dry pipe and that controls a flow rate of the safe water flowing through the tar removal pipe.

Images