阅读说明：本技术 一种可监测的脱硫排舷外管以及制作工艺 (Monitorable desulfurization discharge outboard pipe and manufacturing process thereof ) 是由 杨俊东 梁展新 李兴炉 林欢 罗东浩 陈景寿 杨航兵 于 2021-08-31 设计创作，主要内容包括：本申请涉及船舶技术领域,特别涉及是一种可监测的脱硫排舷外管以及制作工艺,包括内套管、外套管以及法兰部件,所述法兰部件套设于所述内套管以及外套管的外壁；所述内套管的外壁通过贴合于所述外套管的内壁表面的粘合层,与所述外套管的内壁平行贴合；所述内套管设置有封堵环,所述封堵环绕所述内套管的外壁一圈设置,并与所述粘合层的表面接触；所述外套管贯穿设置有通孔,所述通孔贯穿所述粘合层与所述封堵环连通；还包括监测装置,所述监测装置包括检测探头,所述检测探头通过所述通孔插入所述封堵环内部。与现有技术相比,本申请能够监测到排舷外管的泄漏情况,并根据泄漏情况,对排舷外管采用保护措施,提高排舷外管的可靠性。(The application relates to the technical field of ships, in particular to a monitorable desulfurization and outboard exhaust pipe and a manufacturing process thereof, wherein the monitorable desulfurization and outboard exhaust pipe comprises an inner sleeve, an outer sleeve and a flange part, and the flange part is sleeved on the outer walls of the inner sleeve and the outer sleeve; the outer wall of the inner sleeve is attached to the inner wall of the outer sleeve in parallel through an adhesive layer attached to the surface of the inner wall of the outer sleeve; the inner sleeve is provided with a plugging ring, and the plugging ring is arranged around the outer wall of the inner sleeve by a circle and is in contact with the surface of the bonding layer; the outer sleeve is provided with a through hole in a penetrating manner, and the through hole penetrates through the bonding layer and is communicated with the plugging ring; the plugging ring is characterized by further comprising a monitoring device, wherein the monitoring device comprises a detection probe, and the detection probe is inserted into the plugging ring through the through hole. Compared with the prior art, the method and the device can monitor the leakage condition of the exhaust side outer pipe, adopt protective measures for the exhaust side outer pipe according to the leakage condition, and improve the reliability of the exhaust side outer pipe.)

1. A monitored desulfurization and venting outer pipe comprises an inner sleeve, an outer sleeve and a flange part, wherein the flange part is sleeved on the outer walls of the inner sleeve and the outer sleeve;

the method is characterized in that: the outer wall of the inner sleeve is attached to the inner wall of the outer sleeve in parallel through an adhesive layer attached to the surface of the inner wall of the outer sleeve;

the inner sleeve is provided with a plugging ring, and the plugging ring is arranged around the outer wall of the inner sleeve by a circle and is in contact with the surface of the bonding layer;

the outer sleeve is provided with a through hole in a penetrating manner, and the through hole penetrates through the bonding layer and is communicated with the plugging ring;

the plugging ring is characterized by further comprising a monitoring device, wherein the monitoring device comprises a detection probe, and the detection probe is inserted into the plugging ring through the through hole.

2. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the detection probe is provided with a glue injection pore plate; the top of the plugging ring is provided with a plug.

3. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the outer sleeve is made of carbon steel, and the inner sleeve is made of GRE glass fiber reinforced plastic pipes.

4. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the thickness of the bonding layer is 1.5 mm-2 mm.

5. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the blocking ring is fixedly arranged on the surface of the blocking ring, which is in contact with the adhesive layer.

6. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the outer wall of the outer sleeve is provided with an outer plate welding leg, and the outer sleeve is connected with the hull outer plate through the outer plate welding leg.

7. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the end parts of the outer sleeve and the inner sleeve are arc-shaped and chamfered, the end surfaces of the outer sleeve and the inner sleeve are provided with glass fiber reinforced plastic coating layers, and the glass fiber reinforced plastic coating layers cover the outer plate welding feet of the outer sleeve.

8. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: and a ship hull paint coating is coated on the surface of the glass fiber reinforced plastic coating layer.

9. The monitorable, desulfurised, topsides outer tube of claim 1, wherein: the inner wall of the inner sleeve is provided with a spoiler fixing ring, and the spoiler is fixedly arranged in the inner sleeve through the spoiler fixing ring.

10. The process for manufacturing the monitorable desulfurization and venting outer pipe according to claim 1, comprising the steps of:

s1: processing the inner sleeve and the outer sleeve, wherein the processing of the inner sleeve comprises arranging a plugging ring at a corresponding position of the inner sleeve, and the processing of the outer sleeve comprises arranging a through hole at a corresponding position of the outer sleeve in a penetrating manner;

s2: arranging the bonding layer on the inner wall of the outer sleeve, and inserting the inner sleeve into the outer sleeve along the bonding layer;

s3: sleeving an outer flange of the flange part on an outer sleeve, embedding an inner flange of the flange part into the outer flange, and fixedly mounting;

s4: inserting the detection probe into the plugging ring through the through hole;

s5: and installing the desulfurization discharge outboard pipe.

Technical Field

The invention relates to the technical field of ships, in particular to a monitorable desulfurization and outboard discharge pipe and a manufacturing process thereof.

Background

According to International Maritime Organization (IMO) regulations, global navigation vessels can only use fuel oils with a sulphur content not exceeding 0.5%, which global operating vessels must meet in order to reduce sulphide (SOx) emissions in the exhaust gases.

The existing countermeasures mainly include adding a waste gas purification system (desulfurization system), using low-sulfur oil fuel, using LNG fuel instead, and the like. The method for reducing the emission of sulfides on the ship by additionally arranging a desulfurizing tower through the SOx in the waste gas in the cleaning process of seawater or NaOH/Mg (OH)2) liquid and the like is an economical option at present. The use of desulfurization systems involves the discharge of wash water, which is typically designed to be discharged outboard through a whip outboard pipe.

The washing water is liquid formed after washing flue gas and absorbing oxysulfide, the pH value of the washing water is generally acidic, so that the washing water has a strong corrosion effect on a common flat cable outer pipe, the corrosion and damage of the flat cable outer pipe can be caused in a short time, and water inflow and damage of a ship are caused in a serious case.

In order to solve the problems, according to the current technical scheme, the outboard discharge pipe adopts a thickened carbon steel pipe and a special paint coating for corrosion prevention, but because the scheme has very high matching requirements and construction requirements on the paint coating, perfect construction is difficult to achieve in actual application, and a leakage event is easy to occur.

Disclosure of Invention

Based on this, the purpose of the application is to provide a desulfurization exhaust outer pipe capable of being monitored and a manufacturing process, the corrosion resistance of the desulfurization exhaust outer pipe is improved, the problem that leakage is easy to occur is solved, meanwhile, a monitoring device is provided, the leakage condition of the exhaust outer pipe can be monitored, and according to the leakage condition, a protection measure is adopted for the exhaust outer pipe, so that the reliability of the exhaust outer pipe is improved. The technical scheme is as follows:

in a first aspect, an embodiment of the application provides a monitorable desulfurization and venting outer pipe, which comprises an inner sleeve, an outer sleeve and a flange part, wherein the flange part is sleeved on the outer walls of the inner sleeve and the outer sleeve;

the outer wall of the inner sleeve is attached to the inner wall of the outer sleeve in parallel through an adhesive layer attached to the surface of the inner wall of the outer sleeve;

the inner sleeve is provided with a plugging ring, and the plugging ring is arranged around the outer wall of the inner sleeve by a circle and is in contact with the surface of the bonding layer;

the outer sleeve is provided with a through hole in a penetrating manner, and the through hole penetrates through the bonding layer and is communicated with the plugging ring;

the plugging ring is characterized by further comprising a monitoring device, wherein the monitoring device comprises a detection probe, and the detection probe is inserted into the plugging ring through the through hole.

In one embodiment, the detection probe is provided with a glue injection hole plate; the top of the plugging ring is provided with a plug.

In one embodiment, the outer sleeve is made of carbon steel, and the inner sleeve is made of GRE glass fiber reinforced plastic pipe.

In one embodiment, the adhesive layer has a thickness of 1.5mm to 2 mm.

In one embodiment, the patch further comprises an annular patch fixedly arranged on the surface of the plugging ring, which is in contact with the adhesive layer.

In one embodiment, the outer wall of the outer sleeve is provided with an outer plate leg by which the outer sleeve is connected to the outer ship plate.

In one embodiment, the ends of the outer sleeve and the inner sleeve are in a circular arc inverted angle shape, and the end surfaces of the outer sleeve and the inner sleeve are provided with glass fiber reinforced plastic coating layers which cover the outer plate welding feet of the outer sleeve.

In one embodiment, a hull paint coating is applied to the surface of the glass fiber reinforced plastic coating layer.

In one embodiment, the inner sleeve further comprises a spoiler, the inner wall of the inner sleeve is provided with a spoiler fixing ring, and the spoiler is fixedly arranged in the inner part of the inner sleeve through the spoiler fixing ring.

In a second aspect, an embodiment of the present application provides a manufacturing process of a monitorable desulfurization and venting outer pipe, including the steps of:

s1: processing the inner sleeve and the outer sleeve, wherein the processing of the inner sleeve comprises arranging a plugging ring at a corresponding position of the inner sleeve, and the processing of the outer sleeve comprises arranging a through hole at a corresponding position of the outer sleeve in a penetrating manner;

s2: arranging the bonding layer on the inner wall of the outer sleeve, and inserting the inner sleeve into the outer sleeve along the bonding layer;

s3: sleeving an outer flange of the flange part on an outer sleeve, embedding an inner flange of the flange part into the outer flange, and fixedly mounting;

s4: inserting the detection probe into the plugging ring through the through hole;

s5: and installing the desulfurization discharge outboard pipe.

In this embodiment, a monitorable desulfurization exhaust outboard pipe and a manufacturing process are provided, so that the corrosion resistance of the desulfurization exhaust outboard pipe is improved, the problem of easy leakage is solved, and meanwhile, a monitoring device is provided, so that the leakage condition of the exhaust outboard pipe can be monitored, and according to the leakage condition, a protection measure is taken for the exhaust outboard pipe, so that the reliability of the exhaust outboard pipe is improved.

For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a monitored desulfurization and venting outer pipe according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a portion of a monitored desulfurised topsides outer tube according to an embodiment of the present application;

FIG. 3 is a schematic view of a block ring structure of a monitored desulfurization and venting outer pipe according to an embodiment of the present application;

FIG. 4 is a schematic flow chart illustrating a process for manufacturing a monitorable desulfurized and vented outer tube according to one embodiment of the present disclosure;

FIG. 5 is a schematic illustration of the installation of a flange member of a monitorable desulfurised topsides outer tube according to one embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if/if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a monitored desulfurization-venting outer tube according to an embodiment of the present disclosure, fig. 2 is a schematic structural diagram of a portion of a monitored desulfurization-venting outer tube according to an embodiment of the present disclosure, and fig. 3 is a schematic structural diagram of a plugging ring of a monitored desulfurization-venting outer tube according to an embodiment of the present disclosure.

The outer pipe capable of monitoring the desulfurization and desulfurization exhaust side comprises an inner sleeve 1, an outer sleeve 2 and a flange part 3, wherein the flange part 3 is sleeved on the outer walls of the inner sleeve 1 and the outer sleeve 2;

the outer sleeve 2 is made of carbon steel, the wall thickness of the outer sleeve 2 meets relevant regulations of various classification societies, and the outer sleeve 2 is directly welded on the hull outer plate 25; the inner sleeve 1 is made of GRE glass reinforced plastic pipe, so that the corrosion of outboard water discharged by a desulfurization system can be well prevented.

The inner wall surface of the outer sleeve 2 is covered with a layer of bonding layer 4 with the thickness of 1.5 mm-2 mm, the outer wall of the inner sleeve 1 is attached to the bonding layer 4 on the inner wall surface of the outer sleeve 2, the inner sleeve 1 is inserted into the outer sleeve 2, the outer wall of the inner sleeve 1 is attached to the inner wall of the outer sleeve 2 in parallel, and the inner sleeve 1 is tightly bonded with the outer sleeve 2.

The inner sleeve 1 is provided with a plugging ring 11, and the plugging ring 11 is arranged along the outer wall of the inner sleeve 1 in a circle and is in contact with the surface of the bonding layer 4;

the outer sleeve 2 is provided with a through hole 21 in a penetrating way, and the through hole 21 penetrates through the bonding layer 4 and is communicated with the plugging ring 11;

the monitored desulfurization and venting outer pipe further comprises a monitoring device 5, wherein the monitoring device 5 comprises a detection probe 51, and the detection probe 51 is inserted into the plugging ring 11 through the through hole 21.

Because long-time work is put into operation, the condition of seepage probably appears in the bond line 4 between outer tube 2 and the interior sleeve pipe 1, and outside sea water leaks gradually along the clearance between the bond line 4, because the shutoff ring is along the whole pipe wall round of interior sleeve pipe 1, so the liquid of the production of leaking of optional position all can gather the bottom of shutoff ring, and when liquid risees the response liquid level of test probe 51, monitoring devices 5 reported to the police, in time discovers the sea water seepage condition.

In one embodiment, the inspection probe 51 is provided with a glue injection orifice plate (not shown) and the top of the plugging ring 11 is provided with a plug 12.

When the monitoring device 5 monitors that the seawater leakage occurs, the detection probe 51 can inject the glue into the plugging ring 11 through a glue injection pore plate (not shown) on the detection probe 51 to perform plugging, in the process of injecting the glue, a plug arranged at the top of the plugging ring 11 is opened, and the detection probe 51 performs the glue injection from the bottom of the plugging ring 11, so that the air in the plugging ring 11 is removed, the gap between the plugging ring 11 and the bonding layer 4 is filled with the glue, and the annular plugging effect is achieved.

In an alternative embodiment, a first blocking ring 13 and a second blocking ring 14 are arranged according to the length of the inner sleeve 1 and according to a preset length gap, a first through hole 22 and a second through hole 23 are respectively arranged on the outer sleeve 2 in a penetrating manner at corresponding positions of the first blocking ring 13 and the second blocking ring 14, the first through hole 22 is communicated with the first blocking ring 13 through the adhesive layer 4, the second through hole 23 is communicated with the second blocking ring 14 through the adhesive layer 4, and the first detection probe 52 and the second detection probe 53 are respectively inserted into the first blocking ring 13 and the second blocking ring 14.

When the seawater leakage occurs, liquid is gradually accumulated in the first plugging ring 13, when the liquid in the first plugging ring 13 and the second plugging ring 14 rises to the response liquid level of the detection probe 51, the first detection probe 52 and the second detection probe 53 detect that the seawater leakage occurs, the monitoring device 5 gives an alarm, and glue is injected into the first plugging ring 13 and the second plugging ring 14, so that the glue fills the gap between the first plugging ring 13 and the bonding layer 4 and the gap between the second plugging ring 14 and the bonding layer 4.

In one embodiment, the outer tube for desulfurization and venting further comprises an annular patch 15, and the annular patch 15 is fixedly arranged on the surface of the plugging ring 11, which is in contact with the adhesive layer 4.

Before the inner sleeve 1 is inserted into the outer sleeve 2, the annular patch 15 is fixedly arranged on the surface of the blocking ring 11 of the inner sleeve 1, which is in contact with the adhesive layer 4, and the annular patch 15 can block the adhesive of the adhesive layer 4 from entering the blocking ring 11 in the installation process of the inner sleeve 1 inserted into the outer sleeve 2, so as to prevent the inside of the blocking ring from being blocked by the adhesive.

In one embodiment, the outer wall of the outer sleeve 2 is provided with an outer plate leg 24, by means of which outer plate leg 24 the outer sleeve 2 is connected to a hull plate 25.

After the inner tube 1 is inserted into the outer tube 2 and mounted, the outer tube for desulfurization and venting is connected to the hull outer plate 25 by the outer plate fillets 24 provided on the outer wall of the outer tube 2.

In one embodiment, the ends of the outer sleeve 2 and the inner sleeve 1 are rounded and chamfered, and the end surfaces of the outer sleeve 2 and the inner sleeve 1 are provided with a glass fiber reinforced plastic coating layer 6, and the glass fiber reinforced plastic coating layer 6 covers the outer plate fillets 24 of the outer sleeve 2.

In one embodiment, a hull paint coating 7 is applied to the surface of the glass fiber reinforced plastic coating layer 6.

The glass fiber reinforced plastic coating layers 6 arranged on the end surfaces of the outer sleeve 2 and the inner sleeve 1 of the desulfurization and exhaust outer pipe can well prevent the desulfurization system from discharging the corrosion of the outboard water, and the ship hull paint coating 7 is coated on the surface of the glass fiber reinforced plastic coating layers 6 to form double-layer protection, so that the corrosion resistance of the desulfurization and exhaust outer pipe is improved.

In one embodiment, the inner sleeve 1 further comprises a spoiler 8, the inner wall of the inner sleeve 1 is provided with a spoiler fixing ring 16, and the spoiler 8 is fixedly arranged inside the inner sleeve 1 through the spoiler fixing ring 16.

The liquid flowing out of the tube of the outer tube of the desulfurization and exhaust board is disturbed by the turbulence generator 8, so that the liquid can be dispersed more quickly after flowing out and entering the seawater.

Referring to fig. 4, fig. 4 is a schematic flow chart illustrating a manufacturing process of a monitorable desulfurized and shipboard outer tube according to an embodiment of the present application, including the steps of:

s1: and processing the inner sleeve 1 and the outer sleeve 2, wherein the processing of the inner sleeve 1 comprises arranging a plugging ring 11 at a corresponding position of the inner sleeve 1, and the processing of the outer sleeve 2 comprises penetrating a through hole 21 at a corresponding position of the outer sleeve 2.

Manufacturing an inner sleeve 1 according to the size requirement in a plate rolling mode, and processing the outer wall of the inner sleeve 1 to ensure that the outer diameter of the inner sleeve 1 is smaller than the inner diameter of an outer sleeve 2 by 3mm and the roundness of the outer wall of the inner sleeve 1 is ensured; a plugging ring 11 is arranged at a corresponding position of the inner sleeve 1.

The outer sleeve 2 is manufactured according to the size requirement in a plate rolling mode, the inner wall of the outer sleeve 2 is processed, the roundness of the inner wall of the outer sleeve 2 is guaranteed, and the inner sleeve 1 is prevented from being inserted into the outer sleeve 2; flange weld feet 26 are arranged at corresponding positions of the outer sleeve 2 and are used for being connected with flange parts in an installing mode; through holes 21 are provided at corresponding positions.

S2: arranging an adhesive layer 4 on the inner wall of the outer sleeve 2, and inserting the inner sleeve 1 into the outer sleeve 2 by adhering the adhesive layer 4;

the inner wall surface of the outer sleeve 2 is covered with a bonding layer 4 with the thickness of 1.5 mm-2 mm, and the surface of the plugging ring 11 on the processed inner sleeve 1 is provided with an annular patch 15 which is fixed by using viscose.

The outer wall of the inner sleeve 1 is attached to the bonding layer 4, the inner sleeve 1 is inserted into the outer sleeve 2, the outer wall of the inner sleeve 1 is attached to the inner wall of the outer sleeve 2 in parallel, and the inner sleeve 1 is tightly bonded with the outer sleeve 2.

Referring to fig. 5, fig. 5 is a schematic view illustrating an installation of a flange member of a monitored desulfurization port bleed outer pipe according to an embodiment of the present application.

S3: sleeving the outer flange 31 of the flange part 3 on the outer sleeve 2, embedding the inner flange 32 of the flange part 31 into the outer flange 31, and fixedly installing;

the outer flange 31 is provided with a sunken groove 33, the outer flange 31 having dimensions corresponding to the dimensions of the inner flange 32. The outer flange 31 is inserted into the outer jacket tube 2 via the flange foot 26 and welded.

After the outer flange 31 and the outer sleeve 2 are welded, the flange weld leg 26 is processed to be flat, the inner flange 32 is embedded into the outer flange 31 through the sunken groove 33 of the outer flange 31, and extruded viscose is cleaned. And smearing epoxy resin adhesive at the joint of the inner flange 32 and the inner sleeve 1 for bonding, checking the verticality of the inner flange 32 and the inner sleeve 1, and waiting for the adhesive to be cured and complete installation.

S4: the detection probe 51 is inserted into the inside of the plugging ring 11 through the through hole 21.

The detection probe 51 is inserted into the through hole 21, is installed inside the plugging ring 11, and cleans foreign matters inside the plugging ring 11.

The outer sleeve 2 is connected with a hull outer plate 25 through an outer plate fillet 24 arranged on the outer wall of the outer sleeve 2, and the outer tube of the desulfurization and exhaust board is installed.

In this embodiment, a monitorable desulfurization exhaust outboard pipe and a manufacturing process are provided, which improve the corrosion resistance of the desulfurization exhaust outboard pipe and solve the problem of easy leakage, and a monitoring device 5 is provided to monitor the leakage condition of the exhaust outboard pipe and adopt a protection measure for the exhaust outboard pipe according to the leakage condition, so as to improve the reliability of the exhaust outboard pipe.

The present application is not limited to the above-described embodiments, and various changes and modifications to the present application are intended to be included within the scope of the claims and the equivalent technology of the present application if they do not depart from the spirit and scope of the present application.