KR20190102037A - Drain nozzle fixture - Google Patents

Abstract

The drain nozzle fixing device is for fixing a drain nozzle which stirs desulfurization drainage discharged from the desulfurization device formed in the hull and mixes it with seawater, and has an inner space over the outer wall of the hull having an opening below the draft line and the entire axial direction. And a normal outer wall side pipe having openings at both ends in the axial direction, wherein one end in the axial direction is integrally fixed to the opening edge of the outer wall of the hull, and the opening at one end side communicates with the outside of the outer wall of the hull. In addition, the other end in the axial direction is provided with an outer wall side pipe disposed inside the hull outer wall, and the drain nozzle is formed inside the outer wall side pipe.

Description

Drain nozzle fixture

The present disclosure relates to a drain nozzle fixing device for fixing a drain nozzle for stirring and desulfurizing waste water discharged from a desulfurization device formed in a hull to be mixed with seawater.

With the recent tightening of the exhaust gas regulation on ships, the use of fuel oil with sulfur content of 0.1% or less, or alternative measures having an equivalent effect is mandatory in the emission-regulated sea area (ECA sea area). In 2020, in the general sea area, the use of fuel oil having a sulfur content of 0.5% or less, or alternative measures having an equivalent effect thereof is mandatory. As an alternative measure mentioned above, it is recognized to use the desulfurization apparatus which can reduce the sulfur oxide in the exhaust gas discharged | emitted from a main engine, a some power generation engine, and a boiler below a regulated value. Here, there is a background that low-sulfur fuel oil is more expensive than conventional heavy oil fuel oil, and its supply capacity for future increase in demand is opaque. For this reason, in order to continue using heavy oil fuel oil which is inexpensive and sufficient supply capability, providing a desulfurization apparatus in a ship is performed (refer patent document 1, 2).

Moreover, as a regulation for a ship, there exists a pH regulation of the desulfurization wastewater discharged | emitted from the desulfurization apparatus formed in a ship, and at this time, the condition that a pH value is 6.5 or more at the point 4 m away from the outboard is imposed. In order to satisfy the said regulation, the drainage nozzle which promotes mixing of desulfurization wastewater and seawater around a ship was provided in the exit of the drainage pipe which flows the desulfurization wastewater discharged from a desulfurization apparatus conventionally. The conventional drain nozzle has a normal outer peripheral part and the nozzle part formed in the outer peripheral part. One end of the outer peripheral part is integrally joined to the hull outer wall by welding and fixed, and the other end is fixed to the drain pipe. More specifically, the drain nozzle has a flange portion projecting outward from the outer circumferential surface at the other end of the outer circumferential portion, and the flange portions are fastened to the drain pipe in a state where the flange portion is in contact with the flange portion of the drain pipe. It is.

Japanese Patent Publication No. 5789321 Japanese Patent Laid-Open No. 9-239233

However, the conventional drainage nozzle is a so-called strength member that is attached to the outlet as part of the drainage pipe, and the outer circumferential portion directly connects the hull outer wall and the drainage pipe. For this reason, the drainage nozzle which is an intensity | strength member requires the inspection of the welding state of a weld part which takes time every time it welds. In addition, since the conventional drainage nozzle is integrally joined to the hull outer wall by welding, it is necessary to perform welding with the hull outer wall at the time of mounting work. In addition, in the conventional drainage nozzle, it is necessary to weld the new drainage nozzle to the hull outer wall after removing the old drainage nozzle and the welded part of the hull outer wall by cutting, for example, at the time of replacement work. Therefore, in the conventional fixing method of the drain nozzle, there existed a problem that effort | work and time took for attachment work and replacement work of a drain nozzle.

Moreover, the patent document 1 discloses the scrubber (wet gas washing | cleaning apparatus) which wash | cleans the exhaust gas discharged from the engine for ship propulsion, for example. Moreover, when patent document 1 discharges the washing | cleaning liquid used by a scrubber to the exterior, it is disclosed that a neutralizing agent is put into a washing | cleaning liquid and the pH value is adjusted so that discharge | release regulation of a pH value may be satisfied. Patent Literature 2 discloses an absorption step of dissolving sulfurous acid gas in flue gas as sulfurous acid by gas-liquid contact between flue gas and seawater, an oxidation step of oxidizing the sulfurous acid described above with sulfuric acid, and seawater during or after the oxidation step. A flue gas desulfurization method including a neutralization step of adding an alkali agent to adjust the pH value of seawater and a discharge step of discharging the seawater after the neutralization step into the ocean are disclosed. However, Patent Documents 1 and 2 do not all pay attention to the fixing method of the drain nozzle, and there is no mention of the above-mentioned problem.

In view of the above-described circumstances, at least one embodiment of the present invention aims to provide a drain nozzle fixing device that can easily perform a mounting operation and a replacement operation of the drain nozzle.

(1) A drain nozzle fixing device according to at least one embodiment of the present invention,

A drain nozzle fixing device for fixing a drain nozzle for agitating desulfurization drainage discharged from a desulfurization device formed in the hull and mixing it with seawater,

An outer wall of the hull having an opening below the draft line,

A normal outer wall side pipe having an inner space over an entire axial direction and having openings at both ends in the axial direction, wherein one end in the axial direction is integrally fixed to an opening edge of the hull outer wall, The opening at the one end side communicates with the outside of the outer hull outer wall, and the outer wall side pipe having the other end in the axial direction is disposed inside the outer hull outer wall,

The drain nozzle is formed inside the outer wall side pipe.

According to the configuration of the above (1), the outer wall side pipe is usually formed with an inner space over the entire axial direction and an opening communicating with the inner space at both ends in the axial direction. And the outer wall side piping is integrally fixed to the edge part of the opening in which one end part of an axial direction is arrange | positioned below the water line of the outer hull wall. Moreover, in the outer wall side piping, the other end of an axial direction is arrange | positioned inside a ship body outer wall. For this reason, the outer wall side piping can form the drain nozzle inserted in the opening of the both ends of an axial direction in the interior space. And the drainage nozzle formed in the inside of an outer wall side piping can stir desulfurization wastewater which flows in from the opening of the other end side of an axial direction, and can mix it with seawater. Moreover, unlike the conventional drainage nozzle mentioned above, since the drainage nozzle is not integrally joined to the hull outer wall and piping by welding, a mounting operation and an exchange operation can be performed easily.

Therefore, according to the said structure, the attachment work and the replacement work of a drain nozzle can be performed easily.

Moreover, according to the structure of said (1), unlike the conventional drainage nozzle mentioned above, the drainage nozzle attached to the drainage nozzle fixing apparatus is not fixed to the hull outer wall integrally, and is the same as the conventional drainage nozzle There is no need to have strength. For this reason, the drain nozzle can improve the degree of freedom of material selection and replacement frequency compared with the conventional drain nozzle. For example, a fiber reinforced plastic (FRP) or a polymeric material can be used as a material of a drain nozzle, and it can aim at low cost and light weight of a drain nozzle. In addition, unlike the conventional drainage nozzles described above, since they are not strength members, deterioration and wear of the drainage nozzles can be dealt with by regular nozzle replacement, so that material selection of the drainage nozzles can be made in consideration of the above points. .

(2) In some embodiments, in the structure of said (1),

The drain nozzle,

A normal outer peripheral portion and a nozzle portion formed inside the outer peripheral portion,

An outer circumferential surface of the outer circumferential portion is disposed without a gap with respect to an inner surface of the outer wall side pipe.

According to the configuration of (2), since the outer circumferential surface of the outer circumferential portion, which is usually formed, is disposed without a gap with respect to the inner surface of the outer wall side pipe, the drain nozzle is inserted into the outer wall side pipe in the attaching or replacing operation. The positioning of the outer wall side pipe can be performed just by doing so. For this reason, the installation work | work of a drain nozzle and a replacement work can be performed efficiently. Moreover, since the outer peripheral surface is arrange | positioned without the clearance with respect to the inner surface of the outer wall side piping, a part of desulfurization drainage flows in and stays in the clearance gap which is formed in the inner surface of the outer wall side piping and the outer peripheral surface of the drain nozzle, and stays. By some desulfurization drainage, it is possible to prevent the smooth flow of other desulfurization drainages.

(3) In some embodiments, in the structure of said (2),

The drain nozzle fixing device,

It is further provided with the drain nozzle blocking member detachably attached in the vicinity of the said opening of the said hull outer wall, and the said drain nozzle prevents it from coming out of the said outer wall side piping from the opening of the said one end side of the said outer wall piping. do.

According to the configuration of (3), since the drain nozzle blocking member is formed to be detachable in the vicinity of the opening of the hull outer wall, the drain nozzle blocking member is detached to remove the drain nozzle blocking member from the opening at one end of the outer wall side pipe. Mounting and replacement can be performed easily. Moreover, by attaching the drain nozzle blocking member, it is possible to prevent the drain nozzle from escaping from the opening at the one end side of the outer wall side pipe to the outside of the outer wall side pipe.

(4) In some embodiments, in the structure of said (3),

The outer wall side pipe includes a convex portion projecting inwardly from an inner side surface of the other end portion,

The said drain nozzle is formed in the said outer wall side piping in the state in which the one end surface of the said outer peripheral part contact | abuts the said drain nozzle blocking member, and the other end surface of the said outer peripheral part contact | abuts or approaches the said convex part.

According to the configuration of (4), the inside of the outer wall pipe is a drain nozzle in a state where one end surface of the outer peripheral part contacts the drain nozzle blocking member and the other end surface of the outer peripheral part contacts or approaches the convex portion of the outer wall side pipe. Since the operator inserts the drain nozzle from the opening at one end side of the outer wall side pipe into the interior of the outer wall side pipe, and simply attaches the drain nozzle blocking member, positioning in the axial direction of the drain nozzle is achieved. Therefore, the attachment work and the replacement work of the drain nozzle can be performed easily.

(5) In some embodiments, in the structure of said (2),

The drain nozzle fixing device,

An inner pipe further connected to the other end of the outer wall side pipe;

The drain nozzle,

And a first flange portion projecting outward from the outer circumferential surface at the other end on the side opposite to the one end of the outer hull outer wall side of the outer circumference portion,

In the state where the said 1st flange part is sandwiched between the said other end part of the said outer wall side piping and the one end part of the said ship hull outer wall side of the said inner piping, the said outer wall side piping and the said inner piping are fastened and the said outer wall side piping Removably fixed to.

According to the configuration of (5), since only the first flange portion of the drain nozzle is fixed to the outer wall side pipe, positioning in the axial direction of the drain nozzle is performed, thereby making it easy to attach or replace the drain nozzle. It can be carried out. In addition, since only the first flange portion of the drain nozzle is fixed to the outer wall side pipe, rotational movement about the axis of the drain nozzle is limited, and positioning in the circumferential direction of the drain nozzle is performed. Since the drain nozzle itself does not rotate when it mixes with seawater, desulfurization waste water can be stirred efficiently. In addition, the drain nozzle can be easily detached from the outer wall side pipe by releasing the engagement of the outer wall side pipe and the inner pipe. In addition, since the drain nozzle fixing device does not need to include the drain nozzle blocking member, the number of parts can be reduced.

(6) In some embodiments, in the structure of said (5),

The outer wall side pipe includes a second flange portion protruding outward from an outer surface of the other end portion,

The inner pipe includes a third flange portion projecting outward from the outer surface of the one end portion,

The drain nozzle,

In a state where the first flange portion is fitted to the second flange portion and the third flange portion, the second flange portion and the third flange portion are fastened to be detachably fixed to the outer wall side pipe.

According to the configuration of (6), the drain nozzle is the second flange portion and the third in a state where the first flange portion is sandwiched between the second flange portion of the outer wall side pipe and the third flange portion of the inner pipe. The flange is fastened to the outer wall side pipe. For this reason, since a 1st flange part is fixed in the surface contact state of a 2nd flange part or a 3rd flange part, a drain nozzle can be firmly fixed to an outer wall side piping.

(7) In some embodiments, in the structure of said (5) or (6),

The inner pipe is,

A first inner pipe connected to the outer wall pipe;

A second inner pipe connected to the first inner pipe,

The first inner pipe is formed to have a length dimension in the axial direction longer than that of the drain nozzle.

According to the configuration of (7), since the first inner pipe is formed to have a length dimension in the axial direction longer than the drain nozzle, the drainage nozzle is merely removed from the outer wall side pipe or the second inner pipe. Can be removed from the outer wall side pipe. For this reason, the attachment work and the replacement work of a drain nozzle can be performed easily.

(8) In some embodiments, in the structure of said (4),

The drain nozzle fixing device further includes at least one desulfurization drain rectifying member for rectifying the desulfurization drainage before being stirred by the drain nozzle,

The desulfurization wastewater rectifying member is sandwiched and fixed between the other end on the opposite side of the hull outer wall side of the outer circumferential portion of the drain nozzle and the convex portion of the outer wall side pipe.

According to the configuration of (8), since the desulfurization wastewater rectifying member rectifies the desulfurization wastewater before being stirred by the drainage nozzle, the efficiency of the drainage nozzle can be improved. In addition, the desulfurization wastewater rectifying member is inserted into the outer wall side pipe just before the drain nozzle, and is inserted and fixed between the other end of the outer peripheral part of the drain nozzle and the convex part of the outer wall side pipe. For this reason, the attachment operation | work and exchange operation of a desulfurization waste water rectification member can be performed easily.

(9) In some embodiments, in the structure of said (5)-(7),

The drain nozzle fixing device further includes at least one desulfurization drain rectifying member for rectifying the desulfurization drainage before being stirred by the drain nozzle,

The desulfurization wastewater rectifying member is sandwiched and fixed between the other end of the outer circumferential portion of the drain nozzle and the one end of the inner pipe.

According to the configuration of (9), since the desulfurization wastewater rectifying member rectifies the desulfurization wastewater before being stirred by the drainage nozzle, the efficiency of the drainage nozzle can be improved. Further, when the desulfurization wastewater rectifying member is fastened between the drain nozzle and the inner pipe when the outer wall side pipe and the inner pipe are fastened, the desulfurization drainage rectifying member is sandwiched and fixed between the other end of the outer peripheral part of the drain nozzle and the one end of the inner pipe. For this reason, the attachment operation | work and exchange operation of a desulfurization waste water rectification member can be performed easily.

(10) In some embodiments, in the structure of said (3), (4), (8),

The drain nozzle fixing device,

A rotation preventing mechanism having a rotation preventing member inserted along the axial direction is further provided in a hole or a groove formed in one end portion of the outer hull outer wall side of the outer peripheral portion of the drain nozzle.

According to the configuration of (10), the drain nozzle fixing device includes a rotation preventing mechanism having a rotation preventing member inserted along the axial direction in a hole or a groove formed at one end of the hull outer wall side of the outer peripheral portion of the drain nozzle. have. For this reason, since the rotational movement about an axis | shaft is limited and positioning in the circumferential direction of a drainage nozzle is performed, the drainage nozzle does not rotate itself when stirring desulfurization drainage and mixing it with seawater, Can be efficiently stirred.

(11) In some embodiments, in the structure of said (1)-(10),

The drain nozzle fixing device is further provided with at least one reinforcing member which is integrally fixed to the inner wall surface of the hull outer wall and integrally fixed to the outer surface of the outer wall side pipe.

According to the configuration of (11), the hull outer wall and the outer wall side pipe can be reinforced by the reinforcing member. In addition, since the outer wall side pipe is reinforced by the reinforcing member, the thickness of the outer wall side pipe can be reduced by that amount, and the weight and the cost of the outer wall side pipe can be prevented.

(12) In some embodiments, in the structure of said (1)-(11),

In the drain nozzle fixing device, an acid resistant film is formed on an inner side surface of the outer wall side pipe.

According to the configuration of (12), since the acid resistant film is formed on the inner surface of the outer wall side pipe, the material having low acid resistance can be used for the outer wall side pipe.

(13) In some embodiments, in the structure of said (1)-(12),

The drain nozzle is formed of a material having a lower strength than the outer wall side pipe.

According to the configuration of (13), since the drain nozzle is made of a material having a lower strength than the outer wall side pipe, a lightweight and inexpensive material can be used for the drain nozzle, and the drain nozzle can be reduced in weight and low in price. have.

(14) In some embodiments, in the structure of said (1)-(13),

The one end of the outer wall side pipe is integrally fixed to the opening edge of the hull outer wall by welding.

According to the configuration of (14), since one end of the outer wall side pipe is integrally fixed to the opening edge of the outer wall of the hull by welding, the outer wall side pipe and the hull outer wall can be firmly fixed.

According to at least one embodiment of the present invention, a drain nozzle fixing device capable of easily carrying out a mounting operation and a replacement operation of a drain nozzle is provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows schematically the ship provided with the drain nozzle fixing apparatus which concerns on one Embodiment of this invention, and the drain nozzle fixing apparatus.
FIG. 2 is a schematic cross-sectional view showing an enlarged portion A shown in FIG. 1.
3 is a cross-sectional view of the drain nozzle shown in FIG. 2.
4 is a front view of the drain nozzle shown in FIG. 2.
FIG. 5 is a front view of the drain nozzle blocking member shown in FIG. 2. FIG.
FIG. 6: is a figure which shows the drainage nozzle fixing apparatus which concerns on other embodiment of this invention, and is a schematic sectional drawing which expands and shows the A part shown in FIG.
It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the desulfurization drainage rectification member was formed between the other end part of the outer peripheral part of the drain nozzle, and the convex part of the outer wall side piping.
It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the desulfurization drainage rectification member was formed between the other end part of the outer peripheral part of the drain nozzle, and the one end part of an inner piping.
FIG. 9 is a cross-sectional view showing a drain nozzle fixing device according to another embodiment of the present invention, in which a key is inserted into a key groove formed in an outer circumferential portion of the drain nozzle and an outer wall side pipe.
It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the outer peripheral part of the drain nozzle and the drain nozzle blocking member were bolted.
FIG. 11 is a front view of the drain nozzle shown in FIG. 10. FIG.
It is sectional drawing which shows the drainage nozzle fixing apparatus which concerns on another embodiment of this invention. It is a figure which shows the state in which the film is formed in the inner surface of the outer side wall piping.
It is sectional drawing which shows the drainage nozzle fixing apparatus which concerns on another embodiment of this invention. It is a figure which shows the state in which the film is formed in the inner surface and the other end surface of an outer wall side piping.

EMBODIMENT OF THE INVENTION Hereinafter, some embodiment of this invention is described with reference to an accompanying drawing. However, dimensions, materials, shapes, relative arrangements, and the like of the component parts described as embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, but are merely illustrative examples.

For example, an expression representing a relative or absolute arrangement of "in any direction", "in any direction", "parallel", "orthogonal", "center", "concentric", or "coaxial" is strictly Not only does such arrangement be shown, but also the state which is relatively displaced with the tolerance or the angle or distance of the degree to which the same function is obtained.

For example, an expression indicating that objects such as "equal", "equal", and "homogeneous" are equal states not only indicates a strictly equivalent state, but also a difference in the degree to which a tolerance or the same function is obtained exists. It shall also show the state.

For example, an expression representing a shape such as a rectangular shape or a cylindrical shape indicates not only a shape such as a rectangular shape or a cylindrical shape in a geometrically exact sense, but also an uneven part or a chamfered part within a range in which the same effect is obtained. The shape to be included is also shown.

On the other hand, the expression "have", "have", "include", "include", or "include" one component is not an exclusive expression excluding the existence of other components.

In addition, in the following description, the same code | symbol may be attached | subjected to the same structure, and the detailed description may be abbreviate | omitted.

Hereinafter, each structure which the drainage nozzle fixing apparatus 1 comprises is demonstrated, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows schematically the ship provided with the drain nozzle fixing apparatus which concerns on one Embodiment of this invention, and the drain nozzle fixing apparatus. As shown in FIG. 1, the vessel 2 includes a drain pipe for flowing the hull 21, the desulfurization apparatus 3 formed on the hull 21, and the desulfurization drainage Wd discharged from the desulfurization apparatus 3. (5), a drain nozzle (4) disposed on the outlet side of the drain pipe (5), and a drain nozzle fixing device (1) for fixing the drain nozzle (4).

As shown in FIG. 1, the hull 21 includes a hull outer wall 12 extending along the up and down direction in the figure, a deck 21a formed on the upper end side of the hull outer wall 12, and a hull outer wall ( It is comprised by the ship bottom not shown formed in the lower end side part 12), and has inboard space 21b partitioned off by these. In the ship body 21, a main engine and a plurality of power generation engines and boilers are provided in the inboard space 21b.

The desulfurization apparatus 3 is formed on the deck 21a of the ship body 21, as shown in FIG. The desulfurization apparatus 3 desulfurizes the exhaust gas produced from a main engine, a plurality of power generation engines, and a boiler, and produces | generates the exhaust gas after the desulfurization process by which sulfur oxide was reduced below the regulated value. The desulfurization apparatus 3 generates desulfurization waste water Wd during the desulfurization treatment. As shown in FIG. 1, the desulfurization apparatus 3 has the drainage storage tank 3a for storing desulfurization waste water Wd. In addition, the desulfurization waste water Wd in the present invention is not only waste water not subjected to other treatment after the desulfurization treatment, but also waste water subjected to other treatment after desulfurization treatment, for example, a pH adjuster is added. It is to include.

The drain pipe 5 is normally formed in the inboard space 21b of the ship body 21, and extends so that an axial direction may follow an up-down direction in FIG. And the upper end part of the drain piping 5 protrudes outward rather than the deck 21a of the ship body 21 so that the desulfurization drainage Wd which overflowed from the drain storage tank 3a of the desulfurization apparatus 3 may flow in a piping. Consists of. Moreover, the lower end part of the drain piping 5 is bent at substantially right angle in the middle of the length so that a front end may extend along a horizontal direction (right direction in FIG. 1). The tip end of the drain pipe 5 is connected to the drain nozzle fixing device 1.

FIG. 2 is a schematic cross-sectional view showing an enlarged portion A shown in FIG. 1. 3 is a cross-sectional view of the drain nozzle shown in FIG. 2. 4 is a front view of the drain nozzle shown in FIG. 2. FIG. 6: is a figure which shows the drainage nozzle fixing apparatus which concerns on other embodiment of this invention, and is a schematic sectional drawing which expands and shows the A part shown in FIG.

The drainage nozzle 4 is to stir the desulfurization wastewater Wd discharged from the desulfurization apparatus 3 formed in the hull 21 to promote mixing with the seawater Ws around the hull 21. The drain nozzle 4 includes a normal outer circumferential portion 41 and a nozzle portion 42 formed inside the outer circumferential portion 41 as shown in FIGS. 2 and 6. More specifically, the drain nozzle 4 has the outer peripheral part 41 normally formed as shown to FIG. 3, 4 and the at least 1 blade | wing 42a formed in the outer peripheral part 41 inside. It is provided with the nozzle part 42 and the axial part 43 formed in the inside of the nozzle part 42. Moreover, the drain nozzle 4 is arrange | positioned so that an axis line may become colinear with respect to the axis line 1a of the drain nozzle fixing apparatus 1. FIG.

The drain nozzle fixing device 1 includes an outer wall side pipe 11 and a hull outer wall 12 as shown in FIGS. 2 and 6.

The hull outer wall 12 constitutes a part of the hull 21 described above, and has a circular shape penetrating along the thickness direction at a position below the waterline Lw as shown in FIGS. 1, 2, and 6. Opening 12a is formed. The opening 12a of the ship hull outer wall 12 is formed so that an axis line may become the same linear form with respect to the axis line 1a of the drain nozzle fixing apparatus 1.

The outer wall side piping 11 is arrange | positioned so that an axis line may show the same linear form with respect to the axis line 1a of the drain nozzle fixing apparatus 1, as shown to FIG. And the outer wall side piping 11 has the internal space 11a over the whole axial direction as shown to FIG. 2, 6, and is normally formed with an opening in the both ends of an axial direction. More specifically, in the outer wall side piping 11, the one end part opening 11f is formed in the one end part 11b located in the ship body outer wall 12 side in an axial direction, and hull in an axial direction The other end side opening 11g is formed in the other end part 11c which is located inward from the inner side surface 12c of the ship body outer wall 12 as the side away from the outer wall 12. As shown in FIG.

Moreover, in the outer wall side piping 11, the one end part 11b is integrally fixed to the edge part of the opening 12a of the hull outer wall 12, and the one end part opening 11f is the outer side of the hull outer wall 12. That is, it is connected with the outer side rather than the outer side surface 12b of the hull outer wall 12.

More specifically, in some embodiments, the cross section by the one end part 11b side of the outer side wall piping 11 as shown in FIG. 2 is the inner side surface 12c of the hull outer wall 12. In contact with each other, a portion of the one end portion 11b side of the outer surface 11d of the outer wall side pipe 11 positioned around the abutting portion and the inner surface 12c of the hull outer wall 12. The part adjacent to a contact part is joined together by welding, and it is fixed integrally.

The outer wall side pipe 11 has an inner side surface 11e including the one end side opening 11f having a diameter dimension substantially the same as that of the opening 12a of the hull outer wall 12, and the one end side opening 11f. ) Is continuous to the opening 12a of the hull outer wall 12 without a step. In addition, in the outer wall side pipe 11, the one end side opening 11f is connected with the outer side rather than the outer side surface 12b of the outer hull outer wall 12 through the opening 12a of the outer hull outer wall 12.

It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the desulfurization drainage rectification member was formed between the other end part of the outer peripheral part of the drain nozzle, and the convex part of the outer wall side piping. It is sectional drawing which shows the drainage nozzle fixing apparatus which concerns on another embodiment of this invention. It is a figure which shows the state in which the film is formed in the inner surface of the outer side wall piping.

2, 7, and 12, the drain nozzle 4 is formed inside the outer wall side pipe 11, and the outer circumferential surface 41a of the outer circumferential portion 41 is the inner surface of the outer wall side pipe 11. It is arrange | positioned without the clearance with respect to the circumferential surface of 11e and the opening 12a of the hull outer wall 12. As shown in FIG. More specifically, in some embodiments, as shown to FIG. 2, 7, the outer peripheral surface 41a of the outer peripheral part 41 has the inner surface 11e of the outer wall side piping 11 as for the drain nozzle 4 ) And the circumferential surface of the inner surface 11e of the outer wall side pipe 11 and the circumferential surface of the opening 12a of the hull outer wall 12 by direct contact with the circumferential surface of the opening 12a of the hull outer wall 12. It is arranged. Moreover, in some other embodiment, as shown in FIG. 12, the coating member which directly contacts the inner surface 11e of the outer side wall piping 11, and the circumferential surface of the opening 12a of the hull outer wall 12 ( 18) is formed. The drain nozzle 4 has an inner circumferential surface 11e of the outer wall side pipe 11 with the outer circumferential surface 41a of the outer circumferential portion 41 in contact with the covering member 18 via the covering member 18 therebetween. It is arrange | positioned without the clearance with respect to the circumferential surface of the opening 12a of the hull outer wall 12.

In some other embodiment, the outer side wall piping 11 has the one end 11b so that the one end part 11b can be inserted into the opening 12a of the ship outer wall 12 as shown in FIG. The outer side surface 11d to include has the diameter dimension substantially the same as the opening 12a. In the outer wall side pipe 11, one end portion 11b is inserted into the opening 12a of the outer hull outer wall 12 from the inner side surface 12c side of the outer hull outer wall 12, and the one end 11b side of the outer wall side pipe 11. In a state where the cross section is planar to the outer surface 12b of the hull outer wall 12, the portions adjacent to each other between the outer surface 11d and the inner surface 12c of the hull outer wall 12 are welded. By joining by means, it is fixed to the hull outer wall 12 integrally. In addition, the outer wall side piping 11 is connected so that one end side opening 11f may be directly connected rather than the outer side 12b of the hull outer wall 12 through the other member.

It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the desulfurization drainage rectification member was formed between the other end part of the outer peripheral part of the drain nozzle, and the one end part of an inner piping. It is sectional drawing which shows the drainage nozzle fixing apparatus which concerns on another embodiment of this invention. It is a figure which shows the state in which the film is formed in the inner surface and the other end surface of an outer wall side piping.

6, 8, and 13, the drain nozzle 4 is formed in the outer wall side piping 11, and the outer peripheral surface 41a of the outer peripheral part 41 has an inner surface of the outer wall side piping 11 It is arrange | positioned without the clearance with respect to the circumferential surface of 11e. More specifically, in some embodiments, as shown to FIG. 6, 8, as for the drain nozzle 4, the outer peripheral surface 41a of the outer peripheral part 41 is the inner surface 11e of the outer wall side piping 11 ), It is arrange | positioned without the clearance with respect to the inner side surface 11e of the outer wall side piping 11. Moreover, in some other embodiment, as shown in FIG. 13, the coating member 18 which directly contacts the inner side surface 11e of the outer side wall piping 11 is formed. The drainage nozzle 4 is connected to the inner surface 11e of the outer wall side pipe 11 with the outer peripheral surface 41a of the outer peripheral portion 41 in contact with the covering member 18 via the covering member 18 therebetween. It is arranged without gaps.

In some other embodiments, the drain nozzle fixing device 1 further includes an inner pipe 14 as shown in FIGS. 2 and 6. The inner pipe 14 constitutes a part of the drain pipe 5. In addition, the inner pipe 14 includes a first inner pipe 141 connected to the outer wall side pipe 11 and a second inner pipe 142 connected to the first inner pipe 141. As shown in FIG. 6, the 1st inner side pipe | tube 141 is normally formed and the flange part 141d which protrudes outward from the outer peripheral surface of the one end part 141a by the outer wall side piping 11 side of an axial direction. And a flange portion 141e projecting outward from the outer peripheral surface of the other end portion 141b on the side away from the outer wall side pipe 11 in the axial direction. As shown in FIG. 6, the 2nd inner side pipe | tube 142 is normally formed and protrudes outward from the outer peripheral surface of the one end part 142a of the at least 1st inner side pipe | tube 141 side among the both ends of an axial direction. The flange portion 142c is formed. In the first inner pipe 141 and the second inner pipe 142, the inner circumferential surfaces 141c and 142b have substantially the same diameter dimension as the inner circumferential surface 41b of the outer circumferential portion 41 of the drain nozzle 4, and the inner circumferential surface ( 41b) is continuous without a step. Moreover, the 1st inner side pipe | tube 141 and the 2nd inner side pipe | tube 142 are arrange | positioned so that an axis line may become the same linear form with respect to the axis line 1a of the drain nozzle fixing apparatus 1. As shown in FIG.

In some other embodiments, the drain nozzle fixing device 1 further includes a desulfurization drainage rectifying member 15 as shown in FIGS. 7 and 8. The desulfurization wastewater rectifying member 15 is for rectifying the desulfurization wastewater Wd before being agitated by the drainage nozzle 4, and has a circular shape having an outer circumferential surface 15a, and an end surface 15b and the other end surface ( It is formed in the plate shape which has 15c). Moreover, the desulfurization wastewater rectifying member 15 is provided with the plurality of circular through-holes 15d which penetrate in the plate thickness direction over the whole surface except the outer peripheral edge part of one end surface 15b. The desulfurization wastewater Wd is rectified by passing through a through hole 15d of the desulfurization wastewater rectifying member 15. Moreover, the desulfurization wastewater rectifying member 15 is arrange | positioned so that an axis line may become colinear with respect to the axis line 1a of the drainage nozzle fixing apparatus 1.

In some embodiments, the drain nozzle fixing device 1 is provided with the above-mentioned hull outer wall 12 and the outer wall side piping 11 mentioned above as shown to FIG. 2,6. And the drain nozzle 4 mentioned above is formed in the outer wall side piping 11.

According to the said structure, the outer wall side piping 11 has the internal space 11a over the whole axial direction, and is internal to the both ends (one end 11b, the other end 11c) of an axial direction. It is normally formed having an opening (one end side opening 11f, the other end side opening 11g) which communicates with the space 11a. And the outer wall side piping 11 is integrally fixed to the edge part of the opening 12a in which the one end part 11b is formed below the draft line Lw of the ship outer wall 12. As shown in FIG. Moreover, in the outer wall side piping 11, the other end part 11c is arrange | positioned inside the ship body outer wall 12 inside. For this reason, the outer wall side piping 11 can form the drainage nozzle 4 inserted in either opening of the both ends of an axial direction in the interior space 11a.

And the drainage nozzle 4 formed in the inside of the outer wall side piping 11 can stir the desulfurization waste water Wd which flows in from the other end side opening 11g, and mixes it with seawater Ws. Moreover, unlike the conventional drainage nozzle mentioned above, the drainage nozzle 4 is integrally joined by welding to the hull outer wall 12 or piping (outer wall side piping 11, inner piping 14) by welding. Since it is not, the attachment work and the replacement work can be performed easily.

Moreover, unlike the conventional drainage nozzle mentioned above, the drainage nozzle 4 attached to the drainage nozzle fixing apparatus 1 is not integrally fixed to the hull outer wall 12, and it is the same as a conventional drainage nozzle. There is no need to have strength. For this reason, the drain nozzle 4 can improve the degree of freedom of material selection and replacement frequency compared with the conventional drain nozzle. For example, a fiber-reinforced plastic (FRP) or a polymer material can be used as the material of the drain nozzle 4, whereby the drain nozzle can be reduced in cost and weight. In addition, unlike the conventional drainage nozzles described above, since they are not strength members, deterioration and wear of the drainage nozzles 4 can be dealt with by regular nozzle replacement. Material selection is possible.

In some other embodiment, the above-mentioned drainage nozzle 4 is formed of the material whose strength is lower than the outer wall side piping 11. Here, as a material of the outer wall side piping 11, a rolled steel material (SS material), stainless steel (SUS material), etc. for general structures are mentioned, for example. Moreover, as a material of the drain nozzle 4, fiber reinforced plastics (FRP), a polymeric material, etc. are mentioned, for example. In this case, a lightweight and inexpensive material can be used for the drain nozzle 4, and the weight and cost of the drain nozzle 4 can be reduced.

In some other embodiment, as for the outer side wall piping 11 mentioned above, the one end part 11b is integrally fixed by welding to the edge part of the opening 12a of the ship body outer wall 12. In this case, the outer wall side pipe 11 and the hull outer wall 12 can be fixed firmly.

In some other embodiment, the drain nozzle 4 mentioned above includes the outer peripheral part 41 mentioned above and the nozzle part 42 mentioned above. And the drainage nozzle 4 arrange | positions the outer peripheral surface 41a of the outer peripheral part 41 with respect to the inner surface 11e of the outer wall side piping 11 without gap.

According to the said structure, since the outer peripheral surface 41a of the outer peripheral part 41 is arrange | positioned without the clearance with respect to the inner surface 11e of the outer wall side piping 11, in the installation operation | work and an exchange operation, Only by inserting inside the outer wall side piping 11, positioning in the perpendicular | vertical direction with respect to an axial direction with respect to the outer wall side piping 11 can be performed. For this reason, the installation | work and exchange | exchange work of the drain nozzle 4 can be performed efficiently. Moreover, since the outer circumferential surface 41a is arrange | positioned without the clearance with respect to the inner surface 11e of the outer wall side piping 11, the drain nozzle 4 has a part of desulfurization waste water Wd outer peripheral surface 41a of the outer peripheral part 41. Flows into and stays in the gap formed between the inner wall 11e of the outer wall side pipe 11 and prevents the smooth flow of the other desulfurization waste water Wd by the retained portion of the desulfurization waste water Wd. Can be.

In some other embodiment, the drain nozzle fixing apparatus 1 is detachably attached in the vicinity of the opening 12a of the ship outer wall 12, as shown in FIG. 2, and the drain nozzle 4 is an outer wall side. A drain nozzle blocking member 13 is further provided to prevent the pipe 11 from exiting from the one end side opening 11f to the outside of the outer wall side pipe 11.

FIG. 5 is a front view of the drain nozzle blocking member shown in FIG. 2. FIG.

The drain nozzle blocking member 13 has an annular shape having an outer circumferential surface 13a and an inner circumferential surface 13b and a plate shape having an outer surface 13c and an inner surface 13d as shown in FIGS. 2, 5, and 11. Formed. And as shown in FIG.5, 11, the drain nozzle blocking member 13 is provided with the some through-hole 13e which penetrates along the thickness direction in the position near the outer peripheral surface 13a. The plurality of through holes 13e are arranged at equal intervals so that the shaft centers are located on a circle having a predetermined diameter dimension. In some embodiments, as shown in FIG. 11, the drain nozzle blocking member 13 is provided with a plurality of through holes 13f penetrating along the thickness direction at a position near the inner side surface 13d. . The plurality of through holes 13f are disposed at equal intervals so that the shaft centers are positioned on circles having a diameter smaller than a predetermined circle where the shaft centers of the through holes 13e described above are located on the circles. Moreover, the drain nozzle blocking member 13 is arrange | positioned so that an axis line may become colinear with respect to the axis line 1a of the drain nozzle fixing apparatus 1.

As shown in FIG. 2, the hull outer wall 12 is recessed from the outer surface 12b toward the inner surface 11e and has an annular recess having a depth dimension substantially the same as the plate thickness dimension of the drain nozzle blocking member 13. A portion 12d is formed. 12 d of annular recesses have the same axis as the axis of the opening 12a, and have a diameter larger than the diameter of the opening 12a. Moreover, the annular recessed part 12d has a diameter dimension substantially the same as the outer diameter dimension of the drain nozzle blocking member 13.

As shown in FIG. 2, the drain nozzle blocking member 13 inserts the through hole 13e from the outer surface 12b side of the hull outer wall 12 into the annular recess 12d. The male screw member 6 which passes through is screwed to the female screw part 12g provided in the bottom face 12e of the annular recessed part 12d, and is being detachably fixed with respect to the ship body outer wall 12. FIG. The drain nozzle blocking member 13 has an inner side surface 13d in contact with the bottom surface 12e of the annular recess 12d, and an outer side surface 13c has an outer side surface of the hull outer wall 12. 12b) roughly out of work. In addition, the drain nozzle blocking member 13 has an inner circumferential surface 13b having a diameter dimension substantially the same as that of the inner circumferential surface 41b of the outer circumferential portion 41 of the drain nozzle 4.

According to the said structure, since the drain nozzle blocking member 13 is formed so that attachment or detachment is possible in the vicinity of the opening 12a which the hull outer wall 12 has, the outer wall side piping is removed by removing the drain nozzle blocking member 13. The drain nozzle 4 can be easily attached or replaced from the opening 11f at one end side of the 11. Moreover, since the one end surface 41c of the outer peripheral part 41 of the drain nozzle 4 is caught by the inner surface 13d of the drain nozzle blocking member 13 by attaching the drain nozzle blocking member 13, the drain nozzle ( 4) Outflow of the outer wall side pipe 11 from the one end side opening 11f of the outer wall side pipe 11 can be prevented.

In addition, in the above-mentioned embodiment, although the annular recessed part 12d and the female screw part 12g were formed in the hull outer wall 12, you may form an annular recessed part and a female screw part in the outer wall side piping 11. As shown in FIG. In this case, the drain nozzle blocking member 13 is inserted into the annular recess formed in the outer wall side pipe 11 and fixed to the outer wall side pipe 11. Moreover, it is not necessary to form an annular recess in the outer wall side piping 11 or the ship body outer wall 12. FIG. In this case, the drain nozzle blocking member 13 has an inner side surface 13d in contact with an end face 11b side of the outer wall side pipe 11 and an outer side surface 12b of the hull outer wall 12. In the state, it is fixed to the outer wall side piping 11 or the hull outer wall 12.

In some other embodiment, the drain nozzle fixing apparatus 1 is equipped with the outer wall side piping 11 mentioned above, the hull outer wall 12 mentioned above, and the drain nozzle blocking member 13 mentioned above. have. And as for the outer side wall piping 11, the convex part 11h which protrudes inward from the inner side surface 11e of the other end part 11c as shown to FIG. 2, 7, 12 is formed. Moreover, the drain nozzle 4 has the one end surface 41c of the outer peripheral part 41 abuts against the drain nozzle blocking member 13, and the other end surface 41d of the outer peripheral part 41 abuts the convex part 11h, Or it is formed in the inside of the outer wall side piping 11 in the state which adjoins.

More specifically, in some embodiments, when the drainage nozzle 4 is inserted from the one end side opening 11f of the outer wall side piping 11, as shown to FIG. 2, 7, The other end surface 41d is in contact with the step surface 11k formed between the inner surface 11e of the convex portion 11h of the outer wall side pipe 11. The drain nozzle 4 has an axial length dimension in which the axial length dimension of the outer circumferential portion 41 does not include the convex portion 11h of the outer wall side pipe 11, and an annular recess of the hull outer wall 12. The portion 12d is formed to have a length substantially equal to the sum of the thickness dimensions. For this reason, when the drain nozzle 4 is arrange | positioned inside the internal space 11a of the outer wall side piping 11 and the opening 12a of the hull outer wall 12, one end surface 41c will be hull outer wall 12. The bottom surface 12e of the annular recessed part 12d of () is made substantially flat. And when the drain nozzle blocking member 13 is attached to the hull outer wall 12, the one end surface 41c of the outer peripheral part 41 is in contact with the inner surface 13d of the drain nozzle blocking member 13. As shown in FIG.

Moreover, in some other embodiment, the coating member 18 mentioned later as shown in FIG. 12 is adhere | attached on the step surface 11k of the outer wall side piping 11. For this reason, the drain nozzle 4 is made so that the other end surface 41d of the outer peripheral part 41 may approach the step surface 11k of the outer wall side piping 11. The drain nozzle 4 is configured such that the other end surface 41d of the outer circumferential portion 41 abuts on the covering member 18 formed on the step surface 11k of the outer wall side pipe 11. In addition, the drain nozzle 4 has an axial length dimension of the axial direction of the outer circumferential portion 41 that does not include the convex portion 11h of the outer wall side pipe 11, and a length of the hull outer wall 12. The annular recessed portion 12d is formed to have a length shorter by the thickness dimension of the covering member 18 than the sum of the thickness dimensions. For this reason, when the drain nozzle 4 is arrange | positioned inside the internal space 11a of the outer wall side piping 11 and the opening 12a of the hull outer wall 12, one end surface 41c will be hull outer wall 12. The bottom surface 12e of the annular recessed part 12d of () is made substantially flat. And when the drain nozzle blocking member 13 is attached to the hull outer wall 12, the one end surface 41c of the outer peripheral part 41 is in contact with the inner surface 13d of the drain nozzle blocking member 13. As shown in FIG.

According to the above structure, the drain nozzle 4 has one end surface 41c of the outer circumferential portion 41 abuts on the drain nozzle blocking member 13, and the other end surface 41d of the outer circumferential portion 41 is the outer wall side pipe ( Since it is formed inside the outer wall side pipe 11 in the state which abuts or approaches the convex part 11h of 11, an operator removes the drainage nozzle 4 from the one end side opening 11f of the outer wall side pipe 11. Since the positioning in the axial direction of the drain nozzle 4 is achieved only by inserting the drain nozzle blocking member 13 inside the outer wall side pipe 11, the drain nozzle 4 is mounted. Work and exchange work can be performed easily.

In some embodiment mentioned above, the 1st inside piping 141 mentioned above connected to the other end part 11c of the outer wall side piping 11 as shown in FIG. (Inner pipe 14) is further provided. And the outer wall side piping 11 is provided with the flange part 11i which protrudes outward from the outer side surface 11d of the other end part 11c. The outer wall side pipe 11 is fastened to the flange portions 11i and 141d in a state where the end surface of the flange portion 11i is in contact with the end surface of the flange portion 141d of the first inner side pipe 141. And the first inner pipe 141. Here, the outer wall side pipe 11 and the first inner pipe 141 each have a male screw member 7 and a nut member through which through-holes 11j and 141f formed in the flange portions 11i and 141d are inserted. 8) by screwing together, the flange portions 11i and 141d are fastened to each other.

In some other embodiment, the drain nozzle fixing apparatus 1 has the outer wall side piping 11 which has the convex part 11h mentioned above, the hull outer wall 12 mentioned above, and the drain nozzle nozzle mentioned above. The member 13 and the at least one desulfurization-drain rectifying member 15 described above are provided, and a drain nozzle 4 is formed inside the outer wall side pipe 11. And as shown in FIG. 7, the desulfurization wastewater rectifying member 15 and the other end part 42f on the opposite side to the one end part 42e on the side of the hull outer wall 12 of the outer peripheral part 41 of the drain nozzle 4, It is interposed between the convex part 11h of the outer side wall piping 11, and is fixed.

As shown in FIG. 7, the desulfurization wastewater rectifying member 15 has a diameter dimension of the outer circumferential surface 15a so as to be inserted into the inner surface 11e of the outer wall side pipe 11. Is formed in a diameter dimension substantially the same as the diameter dimension of the outer circumferential surface 41a of the outer circumferential portion 41. The desulfurization wastewater rectifying member 15 has one end face 15b in contact with the other end face 41d of the outer circumferential portion 41 of the drain nozzle 4, and the other end face 15c has an outer wall side pipe 11. ) Is in contact with the stepped surface 11k of the convex portion 11h.

According to the above configuration, since the desulfurization wastewater rectifying member 15 rectifies the desulfurization wastewater Wd before being stirred by the drainage nozzle 4, the efficiency of the drainage nozzle 4 can be improved. In addition, the desulfurization wastewater rectifying member 15 is inserted only into the outer wall side pipe 11 before the drain nozzle 4, and the other end portion 41f and the outer wall side pipe of the outer circumferential portion 41 of the drain nozzle 4 are also inserted. It fits between the convex part 11h of 11, and is fixed. For this reason, the attachment operation | work and exchange operation of the desulfurization waste water rectification member 15 can be performed easily.

FIG. 9 is a cross-sectional view showing a drain nozzle fixing device according to another embodiment of the present invention, in which a key is inserted into a key groove formed in an outer circumferential portion of the drain nozzle and an outer wall side pipe. It is sectional drawing which shows the drain nozzle fixing apparatus which concerns on another embodiment of this invention, It is a figure which shows the state in which the outer peripheral part of the drain nozzle and the drain nozzle blocking member were bolted. FIG. 11 is a front view of the drain nozzle shown in FIG. 10. FIG.

In some other embodiment, the drain nozzle fixing apparatus 1 is equipped with the outer wall side piping 11 mentioned above, the hull outer wall 12 mentioned above, and the drain nozzle blocking member 13 mentioned above. The drain nozzle 4 is formed inside the outer wall side pipe 11. And the drain nozzle fixing device 1 is a hole (female screw part) formed in the one end part 41e by the side of the hull outer wall 12 of the outer peripheral part 41 of the drain nozzle 4 as shown to FIGS. 9-11. (41j) or an anti-rotation mechanism 16 having an anti-rotation member 160 (key 161, male screw member 162) inserted along the axial direction in the groove (key groove 41i). Doing.

First, the rotation prevention mechanism 16 which has the key 161 is demonstrated.

As shown in FIG. 9, the drain nozzle 4 is provided with the key groove 41i which extends along the axial direction from the one end surface 41c in the outer peripheral surface 41a of the outer peripheral part 41. As shown in FIG. And as for the outer side wall piping 11, the key groove 11m extended in the axial direction from the end surface of one end part 11b is formed in the inner side surface 11e as shown in FIG. Moreover, the hull outer wall 12 is provided with the key groove 12f which extends from the outer side surface 12b to the inner side surface 12c along the axial direction in the inner peripheral surface of the opening 12a. Each of the key groove 41i of the drain nozzle 4, the key groove 11m of the outer wall side pipe 11 and the key groove 12f of the hull outer wall 12 is an axis line of the drain nozzle fixing device 1 ( The shape of the cross section perpendicular to 1a) is formed in a U-shape. The key grooves 11m of the outer wall side pipe 11 and the key grooves 12f of the hull outer wall 12 are formed to have substantially the same depth dimension. For this reason, when the key groove 41i of the drain nozzle 4 is arrange | positioned facing the key groove 11m of the outer side wall piping 11, and the key groove 12f of the hull outer wall 12, the internal space 16a of a rectangular parallelepiped shape will be provided. ) Is defined.

The key 161 is formed in the rectangular parallelepiped shape, and has a thickness dimension larger than each depth dimension of the key groove 41i of the drain nozzle 4, and the key groove 11m of the outer wall side piping 11. As shown in FIG. The thickness dimension of the key 161 is approximately equal to the sum of the depth dimensions of the key groove 41i and the key groove 11m, or the sum of the depth dimensions of the key groove 41i and the key groove 11m. Is smaller. The key 161 is inserted into the internal space 16a along the axial direction of the key groove 41i from the one end portion 41e side of the outer circumferential portion 41 of the drain nozzle 4. Even if the drainage nozzle 4 tries to rotate about the axis, the key 161 is caught by the side surface of the key groove 41i, so that the rotational movement around the axis is limited.

Next, the rotation prevention mechanism 16 which has the male screw member 162 is demonstrated.

As shown in FIG. 10, the drain nozzle 4 is fixed to the drain nozzle blocking member 13 by bolt fixing by the male screw member 162 (bolt). More specifically, the drain nozzle 4 is provided with the female screw part 41j along the axial direction from the one end surface 41c of the outer peripheral part 41. And the drain nozzle blocking member 13 is 13 f of through-holes in the state inserted in the annular recessed part 12d from the outer side surface 12b side of the hull outer wall 12, as shown in FIG. The male screw member 162 through which the screw is inserted is inserted into the female screw portion 41j along the axial direction from the one end portion 41e side of the outer circumferential portion 41 of the drain nozzle 4 and screwed together, thereby draining the nozzle 4. It is fixed detachably about. In addition, since the drain nozzle blocking member 13 is detachably fixed to the hull outer wall 12 as described above, even if the drain nozzle 4 tries to rotate around the axis, the drain nozzle blocking member Since it is fixed to (13), the rotational movement about an axis is restricted.

According to the said structure, the drain nozzle fixing apparatus 1 is a hole (female screw part 41j) formed in the one end part 41e by the side of the hull outer wall 12 of the outer peripheral part 41 of the drain nozzle 4, or The rotation prevention mechanism 16 which has the rotation prevention member 160 inserted in the groove | channel (key groove 41i) along an axial direction is provided. For this reason, since the rotational movement about an axis is limited and the drainage nozzle 4 is positioned in the circumferential direction of the drainage nozzle 4, the desulfurization waste water Wd is stirred to the seawater Ws. Since it does not rotate itself when mixing, desulfurization waste water Wd can be stirred efficiently.

In some other embodiment, the drain nozzle fixing apparatus 1 is equipped with the outer-wall side piping 11 mentioned above and the hull outer wall 12 mentioned above. And the drain nozzle fixing apparatus 1 is the 1st inner side pipe | tube 141 (inner side pipe 14) mentioned above connected to the other end part 11c of the outer side wall piping 11 as shown in FIG. It is further provided with.

As for the drain nozzle 4, the flange part 41g (1st flange part) which protrudes outward from the outer peripheral surface 41a in the other end part 41f of the outer peripheral part 41 as shown in FIG. have. The drain nozzle 4 is fitted with a flange 41g between the other end 11c of the outer wall side pipe 11 and one end 141a of the hull outer wall 12 side of the first inner pipe 141. In the inserted state, the outer wall side pipe 11 and the first inner pipe 141 are fastened so as to be detachably fixed to the outer wall side pipe 11.

According to the above configuration, since the flange portion 41g of the drain nozzle 4 is fixed to the outer wall side pipe 11 only, the positioning in the axial direction of the drain nozzle 4 is achieved. 4) The mounting and replacement work can be easily performed. Moreover, only the flange 41g of the drain nozzle 4 is fixed to the outer wall side piping 11, the rotational movement around the axis of the drain nozzle 4 is limited, and the circumferential direction of the drain nozzle 4 is limited. Since the positioning in is performed, since the drain nozzle 4 itself does not rotate when the desulfurization waste water Wd is stirred and mixed in the seawater, the desulfurization waste water Wd can be efficiently stirred. In addition, the drain nozzle 4 can be easily detached from the outer wall side pipe 11 by releasing the engagement of the outer wall side pipe 11 and the inner pipe 14. In addition, since the drain nozzle fixing device 1 does not need to include the drain nozzle blocking member 13 described above, the number of parts can be reduced.

In some other embodiment, the drain nozzle fixing apparatus 1 is the outer side wall piping 11 which has the above-mentioned flange part 11i (2nd flange part) as shown in FIG. 6, and the above-mentioned. A first inner side pipe 141 having the hull outer wall 12 and the above-described flange portion 141d (third flange portion) is provided, and a flange portion 41g is formed inside the outer wall side pipe 11. A drain nozzle 4 having one flange portion is formed. And the drainage nozzle 4 is an outer wall side in the state in which the flange part 41g was fitted in the flange part 11i of the outer wall side piping 11, and the flange part 141d of the 1st inner side pipe 141. The flange portion 11i of the pipe 11 and the flange portion 141d of the first inner pipe 141 are fastened to be detachably fixed to the outer wall side pipe 11. Here, the outer wall side pipe 11 and the first inner pipe 141 have through holes 11j and 41h formed in the flange portions 41g of the flange portions 11i and 141d and the drain nozzle 4, respectively. The male screw member 7 and the nut member 8 which pass through the 141f are screwed together, so that the flange portion 11i of the outer wall side pipe 11 and the flange portion 141d of the first inner pipe 141 are fastened. It is.

According to the above configuration, the drain nozzle 4 has a flange portion 41g sandwiched between the flange portion 11i of the outer wall side pipe 11 and the flange portion 141d of the first inner pipe 141. In the inserted state, the flange portion 11i of the outer wall side pipe 11 and the flange portion 141d of the first inner side pipe 141 are fastened to be detachably fixed to the outer wall side pipe 11. For this reason, since the flange part 41g of the drain nozzle 4 is fixed in surface contact with the flange part 11i of the outer side wall piping 11, or the flange part 141d of the 1st inner side pipe 141, The drain nozzle 4 can be firmly fixed to the outer wall side pipe 11.

In some other embodiment, the drain nozzle fixing apparatus 1 is the outer wall side piping 11 mentioned above as shown in FIG. 6, the hull outer wall 12 mentioned above, and the above-mentioned flange part ( The 1st inner side pipe 141 which has 141e, and the 2nd inner side pipe 142 which has the above-mentioned flange part 142c is provided, and it has a flange part 41g in the inside of the outer wall side piping 11, When the outer wall side pipe 11 and the first inner pipe 141 are fastened, a drain nozzle 4 is detachably fixed to the outer wall side pipe 11. And the 1st inner side pipe | tube 141 is formed with the length dimension of the axial direction longer than the drainage nozzle 4. As shown in FIG.

The first inner pipe 141 engages the flange portions 141e and 142c in a state where the end surface of the flange portion 141e is in contact with the end surface of the flange portion 142c of the second inner pipe 142. It is fixed to the 2nd inner side pipe 142 so that attachment or detachment is possible. Here, the first inner pipe 141 and the second inner pipe 142 include the male screw member 7 and the nut through which the through holes 141g and 142d formed in each of the flange portions 141e and 142c pass. The flanges 141e and 142c are fastened by the member 8 screwing.

According to the said structure, since the 1st inner side pipe | tube 141 has the length dimension of the axial direction longer than the drainage nozzle 4, the 1st inner side pipe 141 is made into the outer wall side piping 11 or the 2nd inner side. It is possible to remove the drain nozzle 4 from the outer wall side pipe 11 only by removing it from the pipe 142. For this reason, the attachment work | exchange and the replacement | exchange work of the drain nozzle 4 can be performed easily.

In the above configuration, when the first inner pipe 141 is formed to have a shorter axial length than the second inner pipe 142, the first inner pipe 141 is provided with an outer wall side pipe 11. ) And the second inner pipe 142 can be easily removed.

In some other embodiment, the drain nozzle fixing apparatus 1 is the outer wall side piping 11 mentioned above as shown in FIG. 8, the hull outer wall 12 mentioned above, and the desulfurization waste water rectification mentioned above. The member 15 and the 1st inner side pipe | tube 141 mentioned above are provided, and the drainage nozzle 4 is formed in the inside of the outer wall side pipe | pipe 11. As shown in FIG. And, as shown in FIG. 8, the desulfurization wastewater rectifying member 15 is between the other end part 41f of the outer peripheral part 41 of the drain nozzle 4, and the one end part 141a of the 1st inner side pipe 141. As shown in FIG. It is fitted in and fixed.

As shown in FIG. 8, the desulfurization wastewater rectifying member 15 has a diameter dimension of the outer circumferential surface 15a, a diameter dimension of the outer circumferential surface of the flange portion 11i of the outer wall side pipe 11, and an outer circumferential portion of the drain nozzle 4. The diameter dimension of the outer peripheral surface of the flange part 41g of 41, and the diameter dimension substantially the same as the diameter dimension of the outer peripheral surface of the flange part 141d of the 1st inner side piping 141 are formed. The desulfurization wastewater rectifying member 15 has one end face 15b in contact with a cross section of the flange portion 41g described above, and the other end face 15c has a flange portion (1) of the first inner pipe 141. 141d) is in contact with the end face.

The desulfurization wastewater rectifying member 15 is a flange portion 141d of the outer wall side pipe 11 and a flange portion 141d of the first inner pipe 141 together with the flange portion 41g of the drain nozzle 4. ), The flange portion 11i of the outer wall side pipe 11 and the flange portion 141d of the first inner side pipe 141 are fastened in a detachable manner to the outer wall side pipe 11 in a state of being fitted to the outer wall side pipe 11. . Here, the outer wall side pipe 11 and the first inner pipe 141 are formed in the flange portions 11i and 141d, the flange portion 41g of the drain nozzle 4 and the desulfurization drainage rectifying member 15, respectively. The male screw member 7 and the nut member 8 which pass through the through holes 11j, 41h, 15e, and 141f which are present are screwed together so that the flange 11i of the outer wall side pipe 11 and the first inner pipe ( The flange portion 141d of the 141 is fastened.

According to the above configuration, since the desulfurization wastewater rectifying member 15 rectifies the desulfurization wastewater Wd before being stirred by the drainage nozzle 4, the efficiency of the drainage nozzle 4 can be improved. In addition, when the desulfurization wastewater rectifying member 15 fastens the outer wall side pipe 11 and the first inner pipe 141, it is only sandwiched between the drain nozzle 4 and the first inner pipe 141. It is sandwiched and fixed between the other end 41f of the outer peripheral part 41 of the drain nozzle 4 and the one end 141a of the first inner pipe 141. For this reason, the attachment operation | work and exchange operation of the desulfurization waste water rectification member 15 can be performed easily.

In addition, although the above-mentioned desulfurization wastewater rectification member 15 is provided with two or more 15 d of circular through-holes, each opening diameter may differ. The through hole 15d is not limited to a circular shape but may be formed in a long hole shape, a polygonal shape, or the like. In addition, the drain nozzle fixing device 1 may be configured to form a plurality of the desulfurization drainage rectifying members 15.

In some other embodiment, the drain nozzle fixing apparatus 1 is equipped with the outer wall side piping 11 mentioned above and the hull outer wall 12 mentioned above, and the drain nozzle in the outer wall side piping 11 inside. (4) is formed. And while the drain nozzle fixing device 1 is fixed to the inner side surface 12c (inboard side wall surface) of the hull outer wall 12 as shown to FIG. 12, 13, the outer wall side piping 11 At least one reinforcing member 17 which is integrally fixed to the outer side surface 11d of is further provided.

As shown in FIGS. 12 and 13, the reinforcing member 17 is adjacent to one surface 17a and one surface 17a that abuts on the outer surface 11d of the outer wall side pipe 11, and is disposed on the one surface 17a. As a perpendicular surface, it is formed in the shape of a triangular column with the other surface 17b which abuts on the inner surface 12c of the hull outer wall 12. And the reinforcing member 17 joins the parts adjacent to the contact part of each other by welding in the state which the one surface 17a abuts on the outer surface 11d of the outer wall side piping 11, and an outer wall side It is fixed to the outer side surface 11d of the pipe 11 integrally. In addition, the reinforcing member 17 is joined to a portion of the hull outer wall by welding in the state where the other surface 17b abuts against the inner surface 12c of the hull outer wall 12 by welding. It is fixed integrally with the inner side surface 12c of 12).

According to the above configuration, the hull outer wall 12 and the outer wall side pipe 11 can be reinforced by the reinforcing member 17. Moreover, since the outer wall side piping 11 is reinforced by the reinforcing member 17, the thickness of the outer wall side piping 11 can be made thin by that much, and the weight and the cost of the outer wall side piping 11 can be prevented. have.

In addition, in the above-mentioned embodiment, although the reinforcing member 17 was formed in the shape of a triangular column, it may be formed in another shape, such as a triangular cone shape, for example.

In some other embodiment, the drain nozzle fixing apparatus 1 is equipped with the outer wall side piping 11 mentioned above and the hull outer wall 12 mentioned above, and the drain nozzle in the outer wall side piping 11 inside. (4) is formed. And as for the drain nozzle fixing apparatus 1, the film with acid resistance is formed in the inner surface 11e of the outer side wall piping 11 as shown to FIG. Here, as an example of an acid-resistant film, there exists a rubber lining which adheres the sheet | seat-like coating member 18, such as rubber with acid resistance, to the target surface.

More specifically, in some embodiments, as shown in FIG. 12, the inner side surface 11e of the outer side wall piping 11 which has the above-mentioned convex part 11h, and the inner side surface of the convex part 11h is shown. And the covering member 18 is adhered to the stepped surface 11k. In addition, the covering member 18 also covers the inner circumferential surface of the opening 12a of the hull outer wall 12, the inner circumferential surface and the bottom surface 12e of the annular recess 12d, and the inner circumferential surface 141c of the first inner pipe 141. Is bonded. For this reason, the drain nozzle 4 has an opening of the inner surface 11e of the outer wall side pipe 11 and the hull outer wall 12 with the outer circumferential surface 41a of the outer circumferential portion 41 sandwiching the covering member 18 therebetween. It arrange | positions without a clearance with respect to the inner peripheral surface of 12a). Moreover, the drain nozzle 4 is made so that the other end surface 41d of the outer peripheral part 41 may contact the covering member 18 formed in the step surface 11k of the outer wall side piping 11 mentioned above. And the drain nozzle blocking member 13 is arrange | positioned without the clearance gap with respect to the bottom surface 12e of the annular recessed part 12d by the inner surface 13d between the covering member 18, and an outer surface. (13c) It is substantially faced with the outer side surface 12b of this hull outer wall 12. As shown to FIG.

Moreover, in some other embodiment, as shown in FIG. 13, 41 g of flange parts of the outer peripheral part 41 of the drain nozzle 4 mentioned above are sandwiched between the 1st inner piping 141. FIG. The covering member 18 is adhere | attached on the inner surface 11e of the outer wall side piping 11 to fasten. The cover member 18 is also bonded to the inner circumferential surface 141c of the first inner pipe 141 and the inner circumferential surface 142b of the second inner pipe 142. For this reason, the drain nozzle 4 is arrange | positioned without the clearance with respect to the inner surface 11e of the outer wall side piping 11 by the outer peripheral surface 41a of the outer peripheral part 41 pinching the covering member 18 between them.

Since the acid-resistant film is formed in the inner side surface 11e of the outer wall side piping 11, the said drain nozzle fixing apparatus 1 can use a material with low acid resistance for the outer wall side piping 11.

In the above-mentioned embodiment, although the rubber lining which adhere | attaches the sheet | seat-like coating member 18, such as rubber with acid resistance, as an example of an acid-resistant film was mentioned, the other object is a paint with acid resistance Coating to the surface used as this is mentioned.

This invention is not limited to embodiment mentioned above, The form which added the deformation | transformation to embodiment mentioned above, and the form which combined these forms suitably are also included.

Moreover, in some embodiment mentioned above, each of the 1st inner side pipe | tube 141 and the 2nd inner side pipe | tube 142 has the same linear line with respect to the axis line 1a of the drain nozzle fixing apparatus 1, respectively. Although arrange | positioned so that it may be arrange | positioned, you may arrange | position so that an axis line may not become the same straight line with respect to the axis line 1a of the drain nozzle fixing apparatus 1. FIG. In addition, in some embodiment mentioned above, although the outer-wall side piping 11 had the constant diameter dimension of the inner side surface 12c of the part except the convex part 11h, it is not limited to this, As the end portion 11b is closer to the side, the diameter dimension may be gradually larger or smaller than that of the other end portion 11c. In this case, you may change the outer peripheral part 41 of the drain nozzle 4 into the shape corresponding to the shape of the outer wall side piping 11.

Moreover, although the drain nozzle 4 in some embodiment mentioned above was equipped with the outer peripheral part 41, the nozzle part 42 which has the at least 1 wing | blade 42a, and the shaft part 43, However, the present invention is not limited thereto, and the desulfurization wastewater Wd treated by the desulfurization apparatus 3 formed on the hull 21 is stirred to promote mixing with the seawater Ws around the hull 21. As long as it is formed in the outer wall side piping 11, what kind of thing may be sufficient.

1: drain nozzle fixing device
1a: axis
11: Outer wall side piping
11a: interior space
11b: one end
11c: other end
11d: outer side
11e: inner side
11f: end opening
11 g: other end opening
11h: convex
11i: Flange
11j: through hole
11k: stepped surface
11m: key groove
12: hull outer wall
12a: opening
12b: outer side
12c: medial side
12d: annular recess
12e: bottom surface
12f: keyway
12g: female thread
13: drain nozzle blocking member
13a: outer circumference
13b: inner circumference
13c: outer side
13d: medial side
13e, 13f: through hole
14: inner pipe
141: first inner pipe
141a: one end
141b: other end
141c: inner circumference
141d, 141e: flange part
141f, 141g: Through Hole
142: second inner pipe
142a: one end
142b: inner circumference
142c: flange part
142d: through hole
15: desulfurization drainage rectification member
15a: outer circumference
15b: one side
15c: other section
15d, 15e: through hole
16: anti-rotation mechanism
16a: interior space
160: anti-rotation member
161: key
162: no male thread
17: reinforcing member
17a: one side
17b: ride
18: covering member
2: ship
21: hull
21a: deck
21b: space on board
3: desulfurization device
3a: drainage reservoir
4: drain nozzle
41: outer periphery
41a: outer circumference
41b: Inner circumference
41c: one side
41d: other section
41e: one end
41f: other end
41g: Flange
41h: through hole
41i: key groove
41j: female thread
42: nozzle unit
42a: wings
43: shaft portion
5: drainage piping
6, 7: no male thread
8: nut member
Lw: Waterline
Wd: desulfurization drainage
Ws: Seawater

Claims (14)

A drain nozzle fixing device for fixing a drain nozzle for agitating desulfurization drainage discharged from a desulfurization device formed in the hull and mixing it with seawater,
An outer wall of the hull having an opening below the draft line,
A normal outer wall side pipe having an inner space over an entire axial direction and having openings at both ends in the axial direction, wherein one end in the axial direction is integrally fixed to an opening edge of the hull outer wall, The opening at the one end side communicates with the outside of the outer hull outer wall, and the outer wall side pipe having the other end in the axial direction is disposed inside the outer hull outer wall,
The drain nozzle is a drain nozzle fixing device, characterized in that formed in the outer wall side pipe. The method of claim 1,
The drain nozzle,
A normal outer peripheral portion and a nozzle portion formed inside the outer peripheral portion,
An outer circumferential surface of the outer circumferential portion is disposed without a gap with respect to the inner surface of the outer wall side pipe. The method of claim 2,
The drain nozzle fixing device,
It is further provided with the drain nozzle blocking member detachably attached in the vicinity of the said opening of the said hull outer wall, and the said drain nozzle prevents it from coming out of the said outer wall side piping from the opening of the said one end side of the said outer wall piping. Drain nozzle fixing device, characterized in that. The method of claim 3, wherein
The outer wall side pipe includes a convex portion projecting inwardly from an inner side surface of the other end portion,
The said drain nozzle is formed in the said outer wall side piping in the state in which the one end surface of the said outer peripheral part contact | abuts the said drainage nozzle blocking member, and the other end surface of the said outer peripheral part contact | abuts or approaches the said convex part, It is characterized by the above-mentioned. Drain nozzle fixture. The method of claim 2,
The drain nozzle fixing device,
An inner pipe further connected to the other end of the outer wall side pipe;
The drain nozzle,
And a first flange portion projecting outward from the outer circumferential surface at the other end on the side opposite to the one end of the outer hull outer wall side of the outer circumference portion,
In the state where the said 1st flange part is sandwiched between the said other end part of the said outer wall side piping and the one end part of the said ship hull outer wall side of the said inner piping, the said outer wall side piping and the said inner piping are fastened and the said outer wall side piping The drain nozzle fixing device, characterized in that detachably fixed to. The method of claim 5,
The outer wall side pipe includes a second flange portion protruding outward from an outer surface of the other end portion,
The inner pipe includes a third flange portion projecting outward from the outer surface of the one end portion,
The drain nozzle,
In a state where the first flange portion is fitted to the second flange portion and the third flange portion, the second flange portion and the third flange portion are fastened to be detachably fixed to the outer wall side pipe. Drain nozzle fixture. The method according to claim 5 or 6,
The inner pipe is,
A first inner pipe connected to the outer wall pipe;
A second inner pipe connected to the first inner pipe,
The first inner pipe is formed with a length dimension in the axial direction longer than the drain nozzle, characterized in that the drain nozzle fixing device. The method of claim 4, wherein
The drain nozzle fixing device further includes at least one desulfurization drain rectifying member for rectifying the desulfurization drainage before being stirred by the drain nozzle,
The desulfurization drainage rectifying member is inserted and fixed between the other end on the opposite side of the hull outer wall side of the outer peripheral portion of the drain nozzle and the convex portion of the outer wall side pipe. . The method according to any one of claims 5 to 7,
The drain nozzle fixing device further includes at least one desulfurization drain rectifying member for rectifying the desulfurization drainage before being stirred by the drain nozzle,
And the desulfurization drainage rectifying member is sandwiched and fixed between the other end of the outer circumferential portion of the drain nozzle and the one end of the inner pipe. The method according to any one of claims 3, 4, and 8,
The drain nozzle fixing device,
And a rotation preventing mechanism having a rotation preventing member inserted along the axial direction in a hole or a groove formed in one end portion of the outer hull outer wall side of the outer peripheral portion of the drain nozzle in the axial direction. The method according to any one of claims 1 to 10,
The drainage nozzle fixing device further includes at least one reinforcing member which is integrally fixed to the inner wall surface of the hull outer wall and integrally fixed to the outer surface of the outer wall side pipe. Nozzle fixing device. The method according to any one of claims 1 to 11,
The drain nozzle fixing device is a drain nozzle fixing device, wherein an acid resistant film is formed on an inner side surface of the outer wall side pipe. The method according to any one of claims 1 to 12,
The drain nozzle fixing device is formed of a material having a lower strength than the outer wall side pipe. The method according to any one of claims 1 to 13,
The said one end part of the said outer wall side piping is integrally fixed by welding to the said opening edge part of the said hull outer wall, The drainage nozzle fixing apparatus characterized by the above-mentioned.

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