KR102716299B1 - Marine diesel engine exhaust gas purification device and installation method thereof - Google Patents

Abstract

One embodiment of the present invention provides a marine diesel engine exhaust gas purification device and a method for installing the same, the device including: a main body having an inlet on one side, an outlet on the other side, and a catalyst filter module installed therein; fixed installation parts spaced apart from each other at a predetermined interval in the longitudinal direction of the main body to form an insulating installation space and provided along the periphery of the main body; and an insulating part installed on an outer surface of the main body and blocking heat radiating from the main body to the outside, wherein the insulating part is inserted into the insulating installation space, and the insulating part is fixedly installed in a force-fit form by the spaced-off fixed installation parts.

Description

{MARINE DIESEL ENGINE EXHAUST GAS PURIFICATION DEVICE AND INSTALLATION METHOD THEREOF}

The present invention relates to a marine diesel engine exhaust gas purification device and an installation method thereof, and more specifically, to a marine diesel engine exhaust gas purification device having an insulation portion having excellent insulation of the main body and being configured for easy installation, and a method for installing the same.

Nitrogen oxides and sulfur oxides contained in exhaust gases emitted from ships are representative air pollutants subject to emission regulations by the International Maritime Organization (IMO).

Therefore, ships must be equipped with an exhaust gas purification device that can purify particulate matter (PM), sulfur oxides (SOx), and nitrogen oxides (NOx) in the exhaust gas generated during the operation and combustion process of marine diesel engines.

A catalytic filter module is installed inside the exhaust gas purification device for a marine diesel engine, so that air pollutants such as nitrogen oxides and sulfur oxides in the high-temperature exhaust gas flowing into the interior of the main body through the inlet can be filtered by the catalytic filter module.

And the exhaust gas purified through the catalyst filter module is discharged to the outside of the main body through the exhaust port provided on the other side of the main body.

These marine diesel engine exhaust gas purification devices filter out air pollutants from exhaust gas flowing in through the inlet while creating an exhaust gas purification atmosphere in which the temperature inside the main body is higher than a predetermined temperature.

In order to prevent the heat energy of the main body heated to a predetermined temperature from being released to the outside, an insulation part may be provided in a marine diesel engine exhaust gas purification device of this type. However, the insulation part provided in a conventional marine diesel engine exhaust gas purification device has a low insulation effect, so there is a problem that the heat energy of the main body is greatly lost, and the installation process of the insulation part is also very complicated and difficult.

Accordingly, various research and developments are being conducted on marine diesel engine exhaust gas purification devices equipped with insulation parts that have excellent main body insulation and are easy to install.

Prior Document 1: Korean Patent Publication No. 10-2013-0061280 (2013.06.11)

The technical problem of the present invention for solving the above problems is to provide a marine diesel engine exhaust gas purification device having an insulation part having excellent insulation of the main body and easy installation, and a method for installing the same.

In order to achieve the above technical task, one embodiment of the present invention provides a marine diesel engine exhaust gas purification device, comprising: a main body having an inlet provided on one side, an outlet provided on the other side, and a catalyst filter module provided therein; fixed installation parts provided along the periphery of the main body to form an insulating installation space by being spaced apart at a predetermined interval in the longitudinal direction of the main body; and an insulating part installed on an outer surface of the main body and blocking heat radiating from the main body to the outside, wherein the insulating part is inserted into the insulating installation space, and the insulating part is fixedly installed in a force-fit form by the spaced-off fixed installation parts.

In one embodiment of the present invention, the insulating part has a plurality of insulating members that block heat radiating from the main body, and the insulating members installed in the insulating installation space are fitted together by the fixed installation part in which two or more of the insulating members are spaced apart with respect to the longitudinal direction of the main body, and the insulating members are installed in a stacked manner, and the insulating member arranged in the uppermost layer adjacent to the fixed installation part can be fixedly installed so as to be prevented from detaching by a detachment prevention part provided on the upper end of the fixed installation part.

In one embodiment of the present invention, the insulating members arranged adjacent to each other in the longitudinal direction of the main body may be arranged so that their horizontal alignments do not match each other.

In one embodiment of the present invention, the insulating member further includes a glass tape, and the glass tape may be configured to provide insulation to a protruding structure protruding outward from the main body that is not insulated by the insulating member.

In one embodiment of the present invention, a heating cable may be provided between the main body and the insulation part to preheat the internal temperature of the main body to a predetermined temperature or higher.

An embodiment of the present invention provides a method for installing an exhaust gas purification device for a ship diesel engine, comprising: (A) a step of installing a heating cable for preheating an internal temperature of a main body to a predetermined temperature or higher on an outer surface of the main body; (B) a step of fixing and installing a plurality of insulating members on an outer surface of the main body; and (C) a step of wrapping a glass tape around a protruding structure protruding from the main body to perform insulation treatment, wherein step (B) comprises: (B1) a step of fitting and connecting two or more of the insulating members into fixed installation members spaced apart from each other in a longitudinal direction of the main body; (B2) a step of fixing and installing the insulating members in a circumferential direction of the main body; and (B3) a step of stacking and installing the insulating members upward, wherein in step (B3), the insulating members arranged in the uppermost layer adjacent to the fixed installation members are fixedly installed so as to be prevented from being detached by a detachment prevention member provided on an upper end of the fixed installation members.

In one embodiment of the present invention, the step (A) may include: (A1) a step of installing a strap module on the main body; (A2) a step of fixing the heating cable, which has a straight portion and a curved portion formed in a predetermined shape, to the strap module; and (A3) a step of installing a fixing wire to the outside of the heating cable fixedly installed on the strap module.

The effects of the marine diesel engine exhaust gas purification device and its installation method according to the present invention described above are as follows.

According to the present invention, a marine diesel engine exhaust gas purification device is provided with a heat insulating portion configured to block heat emitted from a main body. This heat insulating portion is installed by inserting a plurality of heat insulating members into an heat insulating installation space, so that the heat insulating portion can be easily installed around the outer periphery of a cylindrical main body. In other words, the heat insulating portion according to the present invention is not formed by, for example, a single integral heat insulating portion having a size corresponding to the outer surface of the main body, which is wrapped around the entire outer surface of the main body, but by assembling a plurality of heat insulating members having a predetermined size in a fitting manner and fixing the heat insulating portion around the periphery of the main body, so that the installation work of the heat insulating portion can be easily performed. In addition, the heat insulating portion provided on the outer surface of the main body is provided with heat insulating members in a laminated form, so that the heat insulating effect of the main body is excellent.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

FIG. 1 is a perspective view of a marine diesel engine exhaust gas purification device according to one embodiment of the present invention.
FIG. 2 is a front view of a marine diesel engine exhaust gas purification device according to one embodiment of the present invention.
Figure 3 is a schematic development diagram of a marine diesel engine exhaust gas purification device according to one embodiment of the present invention.
FIG. 4 is an exemplary diagram showing a heating cable having a straight section and a curved section connected according to one embodiment of the present invention.
FIG. 5 is an exemplary diagram showing a heating cable secured to a strap module via a tab band according to one embodiment of the present invention.
FIG. 6 is a perspective view of a marine diesel engine exhaust gas purification device having an insulating part according to one embodiment of the present invention.
Figure 7 is an exemplary diagram showing a state in which an insulating member is laminated according to one embodiment of the present invention.
FIG. 8 is an exemplary diagram schematically showing the arrangement of insulating members installed in the longitudinal direction of a main body according to one embodiment of the present invention.
Figure 9 is a flow chart showing the installation process of a marine diesel engine exhaust gas purification device according to one embodiment of the present invention.
Figure 10 is a flowchart showing the installation process of a heating cable according to one embodiment of the present invention.
Figure 11 is a flow chart showing the installation process of an insulating member according to one embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms, and therefore is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are assigned similar drawing reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another part in between. Also, when a part is said to "include" a certain component, this does not mean that it excludes other components, but rather that it can have other components, unless otherwise specifically stated.

In the present invention, upper and lower parts mean being located above or below the target member, but do not necessarily mean being located above or below with respect to the direction of gravity.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a perspective view of a marine diesel engine exhaust gas purification device according to an embodiment of the present invention, FIG. 2 is a front view of a marine diesel engine exhaust gas purification device according to an embodiment of the present invention, FIG. 3 is a schematic development diagram of a marine diesel engine exhaust gas purification device according to an embodiment of the present invention, FIG. 4 is an exemplary view showing a heating cable in which a straight portion and a curved portion are connected according to an embodiment of the present invention, and FIG. 5 is an exemplary view showing a heating cable fixed to a strap module via a tab band according to an embodiment of the present invention.

In FIGS. 1 to 5, a marine diesel engine exhaust gas purification device (1000) before an insulation member (500, see FIG. 6) is attached to a main body (100) is described as an example. The marine diesel engine exhaust gas purification device (1000) may include a main body (100), a heating cable (200), and a strap module (300).

Here, the main body (100) forms the exterior of a marine diesel engine exhaust gas purification device (1000).

A receiving space (not shown) is formed inside the main body (100), and a catalyst filter module (not shown) that purifies exhaust gas flowing into the inside of the main body (100) is provided in the receiving space. Such a catalyst filter module filters pollutants in the exhaust gas emitted from a marine diesel engine. Such a catalyst filter module may be arranged at predetermined intervals in the longitudinal direction of the main body (100), for example.

These catalyst filter modules can be formed by stacking a plurality of catalyst filter sections (not shown). Here, the catalyst filter section is configured to filter air pollutants such as particulate matter (PM), sulfur oxides (SOx), and nitrogen oxides (NOx) in exhaust gas generated during the operation and combustion process of a marine diesel engine, for example.

A catalyst filter part like this may be made of a ceramic catalyst filter. Here, the catalyst filter part is not necessarily limited to a ceramic catalyst filter, and of course, any catalyst filter can be used as long as it has excellent filtering of air pollutants in exhaust gas emitted from a marine diesel engine.

In this way, exhaust gas that flows into the interior of the main body (100) through the inlet (110) provided on one side of the main body (100) is purified through the catalyst filter module and then discharged to the outside of the main body (100) through the outlet (120) provided on the other side of the main body (100).

Meanwhile, the heating cable (200) is configured to preheat the main body (100). Such a heating cable (200) may be, for example, a heating wire, and the heating cable (200) may be heated by electric energy.

Since these heating cables (200) can preheat the internal temperature of the main body (100) to a predetermined temperature even in extreme conditions, such as when a ship is moving or anchored in a polar region, filtering of air pollutants can be effectively performed for exhaust gas initially flowing into the interior of the main body (100).

A heating cable (200) like this is attached and fixed to the outer surface of the main body (100) and preheats the internal temperature of the main body (100) to the required temperature.

These heating cables (200) preheat the main body (100) so that the internal temperature of the main body (100) can be, for example, 250 to 350°C so that effective purification of exhaust gas can be achieved. At this time, the required internal temperature range of the main body (100) does not necessarily have to be 250 to 350°C, and it is of course possible to maintain the internal temperature of the main body (100) at a certain temperature or higher even in a temperature range other than that.

It is preferable that the length of the heating cable (200) be 40 to 45 m. For example, if the length of the heating cable (200) is less than 40 m, there is a problem that the work process becomes cumbersome because more heating cables (200) must be used when installing the heating cable (200) in the main body (100). In addition, if the length of the heating cable (200) exceeds 45 m, there is a problem that the heating cable (200) cannot effectively preheat the main body (100) because the thermal conductivity of the heating cable (200) decreases. In the present invention, a form in which three heating cables (200) are installed on the outer surface of the main body (100) will be described as an example.

In this way, the length of the heating cable (200) installed on the outer surface of the main body (100) is 40 to 45 m, which has excellent thermal conductivity, so that the main body (100) can be effectively heated while simplifying the installation work of the heating cable (200). Accordingly, it is preferable that the length of the heating cable (200) installed on the main body (100) is 40 to 45 m.

A heating cable (200) of this type is connected to a straight section (210) and a curved section (220), and wraps around the entire outer circumference of the main body (100) to preheat the internal temperature of the main body (100) to a required temperature.

Here, when connecting from the straight section (210) to the curved section (220), the curved section (220) is formed to have an inner radius (R) that is at least six times the outer diameter (D) of the heating cable (200).

At this time, if the curved portion (220) forms a curve with an inner radius (R) less than 6 times the outer diameter (D) of the heating cable (200), the heating cable (200) forming the curved portion (220) is bent abruptly, which causes a problem in that the heat conduction of the heating cable (200) is not properly achieved. Therefore, it is preferable that the curved portion (220) be formed so that the portion connecting the straight portion (210) to the curved portion (220) forms an inner radius (R) more than 6 times the outer diameter (D) of the heating cable (200).

In this way, the heating cable (200) is fixed tightly to the outer surface of the main body (100) in a state where the heating cable (200) is deformed into the required shape by the connecting structure of the straight section (210) and the curved section (220) mentioned above. At this time, it is preferable that the distance (W) between the adjacent heating cables (200) installed in the main body (100) is 25 mm to 500 mm.

More preferably, the distance (W) between neighboring heating cables (200) is calculated in advance using the following calculation formula 1, and the heating cable (200) is installed in the main body (100) while the shape of the heating cable (200) is deformed according to the distance (W) obtained using the following calculation formula 1. At this time, the distance (W) between neighboring heating cables (200) can be calculated using the following calculation formula 1 based on a heating cable (200) having a diameter of 5 to 6 mm.

[Calculation formula 1]

For example, regarding the installation of a heating cable (200) for the heating area (A) shown in FIG. 3, if, for example, the heating area (A) of the main body (100) is 16,000,000 mm ² and the length of the heating cable (200) is 42,000 mm, when installing the heating cable (200) in the main body (100), it is preferable to install the heating cables (200) arranged adjacently so that they are spaced apart by about 380 mm. This spacing distance (W) between the heating cables (200) may be a spacing distance (W) between the heating cables (200) that can effectively increase the internal temperature of the main body (100) in a state where the heating cables (200) are in close contact with the outer surface of the main body (100).

In other words, the calculation formula 1 is a formula calculated so that the internal temperature of the main body part (100) can be increased more effectively for the entire area of the main body part (100) when the heating area of the main body part (100) for heating and the length of the heating cable (200) are determined. When the heating cable (200) is installed on the outer surface of the main body part (100) through the calculation formula 1, the main body part (100) heated by the heating cable (200) can be uniformly heated for the entire area of the main body part (100).

In this way, when installing the heating cable (200) in the main body (100), the worker does not install the heating cable (200) on the outer surface of the main body (100) based on the worker's experience and feeling, but installs the heating cable (200) on the outer surface of the main body (100) using the distance (W) between the heating cables (200) obtained from the calculation formula 1, so that the heating temperature of the main body (100) can be effectively increased. In addition, when installing the heating cable (200) on the outer surface of the main body (100), it is possible to prevent the installation result of the heating cable (200) from differing depending on the worker. In the present invention, a form in which three heating cables (200) are installed on the outer surface of the main body (100) will be described as an example.

Meanwhile, the heating cable (200) can be stably and tightly fixed to the outer surface of the main body (100) by a strap module (300) fixedly installed on the main body (100).

A strap module (300) like this may include a first strap (310) and a second strap (320).

Here, the first strap (310) is configured to be installed horizontally. That is, the first strap (310) is installed in the longitudinal direction of the main body (100). Both ends of the first strap (310) may be fixedly installed in the inlet (110) and the outlet (120), respectively. The first strap (310) installed in the longitudinal direction of the main body (100) may be provided in multiple pieces at predetermined intervals along the circumference of the main body (100).

And the second strap (320) is configured to be installed in the circumferential direction of the main body (100). The second strap (320) installed in the circumferential direction of the main body (100) may be provided in multiple pieces at predetermined intervals along the longitudinal direction of the main body (100).

A cut tab band (301) is formed on the first strap (310) and the second strap (320), so that when a worker fixes the heating cable (200) to the outer surface of the main body (100), he/she can fix the heating cable (200) to the strap module (300) by bending the tab band (301).

And the heating cable (200) supported and fixed by the strap module (300) can be supported and fixed more stably to the main body (100) by the fixing wire (330). This fixing wire (330) has a mesh shape and is configured to tightly attach the heating cable (200) to the main body (100).

Such a fixed wire (330) may be made of, for example, stainless steel. The fixed wire (330) made of such stainless steel has low thermal conductivity, so that heat generated from the heating cable (200) can be prevented from being conducted to the fixed wire (330).

FIG. 6 is a perspective view of a marine diesel engine exhaust gas purification device having an insulating member according to one embodiment of the present invention, FIG. 7 is an exemplary view showing a state in which insulating members according to one embodiment of the present invention are laminated, and FIG. 8 is an exemplary view schematically showing the arrangement of insulating members installed in the longitudinal direction of a main body according to one embodiment of the present invention.

As shown in FIGS. 6 to 8, the marine diesel engine exhaust gas purification device (1000) may include a fixed installation part (400) and an insulation part (500).

Here, the fixed installation parts (400) are spaced apart at predetermined intervals along the length direction of the main body part (100) and are formed to form an insulation installation space (401, see FIG. 2) in which the insulation part (500) is installed.

A plurality of fixed installation parts (400) spaced apart along the length direction of the main body (100) are provided along the perimeter of the main body (100). That is, the fixed installation parts (400) are provided along the perimeter of the main body (100) forming a cylindrical shape.

This fixed installation part (400) is configured to support and fix the insulation part (500) when the insulation part (500) is installed in the insulation installation space (401).

And the insulation part (500) is installed in the insulation installation space (401). This insulation part (500) is installed on the outer surface of the main body part (100) so as to block the heat of the main body part (100) heated to a predetermined temperature from being emitted to the outside. This insulation part (500) blocks the main body part (100) and the external environment of the main body part (100) so that the main body part (100) heated by the heating cable (200) maintains the predetermined temperature while the catalytic filter module effectively filters air pollutants. In this way, the heating cable (200) that preheats the main body part (100) to a predetermined temperature can be provided between the main body part (100) and the insulation part (500).

This insulation part (500) is not formed by wrapping a single integral insulation part around the outer surface of the main body (100) at once, but rather by assembling a plurality of insulation members (510) having a certain size in a fitting manner to securely install the insulation part (500) around the perimeter of the main body (100).

Such an insulating member (500) is composed of a plurality of insulating members (510) having a certain size. Here, the insulating member (510) can be formed in various shapes, taking into consideration the size and weight of the insulating member (510) that can be installed by the worker when installing the insulating member (510) in the insulation installation space (401).

These insulating members (510) can be inserted into the insulating installation space (401) and fixedly installed in a force-fit form between the facing fixed installation parts (400). Specifically, when the insulating members (510) are fitted into the spaced fixed installation parts (400), two or more insulating members (510) can be fitted between the spaced fixed installation parts (400) with respect to the longitudinal direction of the main body (100). In the present invention, a form in which three insulating members (510) are fitted between two facing fixed installation parts (400) will be described as an example.

In this way, the insulating member (510) fitted into the spaced fixed installation member (400) is fixedly installed along the entire circumference of the main body (100). Accordingly, the outer surface of the main body (100) can be entirely covered by the insulating member (510).

Here, the insulating members (510) that are fixedly installed adjacently in the longitudinal direction of the main body (100) are preferably not installed in a parallel form (aligned form), for example, but are arranged so as to be staggered. That is, the insulating members (510) that are fixedly installed adjacently in the longitudinal direction of the main body (100) are arranged so that their horizontal alignments do not match each other. This is to minimize the loss of thermal energy that is emitted to the outside through the connecting portion of the insulating members (510) by fixing the insulating members (510) that are fixedly installed adjacently in the longitudinal direction of the main body (100) so as to be staggered.

And in the structure where the insulation members (510) are laminated in the outer direction of the main body (100), the insulation members (510) arranged on the upper side and the insulation members (510) arranged on the lower side are not precisely vertically aligned, but are arranged to be staggered, thereby further blocking the heat dissipation of the main body (100). In other words, when the second layer of insulation members (510) are fixedly installed on top of the first layer of insulation members (510), the installation positions of the insulation members (510) laminated in the first and second layers are not installed parallel to the stacking direction, but are staggered, thereby preventing heat loss of the main body (100).

In this way, the insulation member (510) is not fixed as a single layer on the outer surface of the main body (100), but is fixed in multiple layers to minimize heat loss of the main body (100). In the present invention, a form in which three insulation members (510) are laminated in the outer direction of the main body (100) will be described as an example. Here, the insulation members (510) laminated in the outer direction of the main body (100) do not necessarily have to be formed in a three-layered form, and it is obvious that they may be formed in various layers depending on the size and shape of the insulation members (510).

For example, when the number of insulating members (510) laminated in the outer direction of the main body (100) is four or more, insulating members (510) laminated up to three may be re-fixed using a separate fixing mesh wire (not shown). Afterwards, after additionally laminating insulating members (510) on the outer side of the insulating members (510) laminated up to three, the insulation may be finished using an insulating cover (not shown) made of a sheet metal plate. In this way, when the insulating cover completely wraps around the insulating member (500), a fixing binding (not shown) is wrapped around the outer surface of the insulating cover to stably support and fix the insulating cover. This fixing binding is in the shape of a belt and is installed in the circumferential direction of the main body (100). A plurality of such fixing bindings are installed at predetermined intervals in the longitudinal direction of the main body (100) to stably fix the insulating cover as a whole.

In this way, the number of insulating members (510) laminated in the outer direction of the main body (100) is not limited to a specific number, and can be installed in various layers.

Again, when the previously described insulating member (510) is laminated and installed, the insulating member (510) disposed on the uppermost layer adjacent to the fixed installation part (400) is fixedly installed in a state in which it is prevented from being removed by the separation prevention part (410) provided on the upper end of the fixed installation part (400). That is, the separation prevention part (410) pressurizes and fixes the insulating member (510) disposed on the uppermost layer, so that a plurality of insulating members (510) inserted and laminated in the insulating installation space (401) can be stably supported and fixed without being removed from the insulating installation space (401). In this way, when all the insulating members (510) are laminated in the required layers, the insulating members (510) installed in the circumferential direction of the main body (100) can be more stably fixed by using a fixed support member (not shown), such as a wire, for example.

As described above, the insulation part (500) according to the present invention is installed and fixed in a forced fit form in the insulation installation space (401) by a plurality of insulation members (510), so that even if the main body (100) is formed in a cylindrical shape, the insulation part (500) can be easily installed around the perimeter of the main body (100). In addition, the effective installation of the insulation part (500) is possible for various main bodies (100) of different sizes. In addition, by installing a plurality of insulation members (510) in a stacked manner, the insulation of the main body (100) can be more effectively achieved.

For example, the insulation part (500) is insulated so that the temperature of the insulation part (500) positioned on the top layer of the insulation part (500) is less than 60°C when the internal temperature of the main body (100) is 250 to 350°C.

Meanwhile, the insulation part (500) may include a glass tape (not shown). This glass tape may be used to provide insulation treatment to, for example, a protruding structure (130) protruding outward from the main body (100). Here, the protruding structure (130) may be, for example, a variety of support structures in the shape of a bar. In this way, the protruding structure (130) that is not provided with insulation treatment by the insulation member (510) is wrapped with the glass tape and provided with insulation treatment.

FIG. 9 is a flow chart showing the installation process of a marine diesel engine exhaust gas purification device according to an embodiment of the present invention, FIG. 10 is a flow chart showing the installation process of a heating cable according to an embodiment of the present invention, and FIG. 11 is a flow chart showing the installation process of an insulating member according to an embodiment of the present invention.

Referring to Figures 9 to 11, the installation process of the ship diesel engine exhaust gas purification device (1000) is schematically examined. First, a heating cable (200) that preheats the internal temperature of the main body (100) to a predetermined temperature or higher is installed on the outer surface of the main body (100). (S100)

The installation of the heating cable (200) installs a strap module (300) to secure the heating cable (200) to the main body (100). (S110)

Next, a heating cable (200) formed with a straight section (210) and a curved section (220) in a predetermined shape is fixed to the strap module (300). Such a heating cable (200) can be fixedly installed on the outer surface of the main body (100). (S120)

Next, a fixed wire (330) is installed on the outside of the heating cable (200) fixedly installed on the strap module (300). Through this fixed wire (330), the heating cable (200) can be stably fixedly installed on the outside of the main body (100). (S130)

Next, a plurality of insulating members (510) are fixedly installed on the outer surface of the main body (100). (S200)

Here, two or more insulating members (510) are fitted and connected between fixed installation members (400) spaced apart in the length direction of the main body (100). (S210)

In this way, the insulation material (510) is fixedly installed all around the circumference of the main body (100). (S220)

Next, the insulation member (510) is installed in layers on top of the insulation member (510) installed on the outer surface of the main body (100). (S230)

In this way, the insulating member (510) fixedly installed on the outer surface of the main body (100) is installed in multiple layers rather than a single layer. At this time, the insulating member (510) positioned on the uppermost layer adjacent to the fixed installation part (400) can be stably fixedly installed in the insulation installation space (401) while being prevented from being detached by the detachment prevention part (410) provided on the upper end of the fixed installation part (400).

Finally, the protruding structure (130) protruding outward from the main body (100) that is not insulated by the insulating member (510) is wrapped with glass tape to provide insulation for the protruding structure (130). (S300)

However, this is only a preferred embodiment of the present invention, and the scope of the rights of the present invention is not limited by the scope of the description of this embodiment.

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

100: Main body
110: Inlet
120: exhaust port
130: Protruding structure
200: Heating Cable
210: Straight line
220: Curved section
300: Strap Module
301: Tap Band
310: 1st Strap
320: 2nd strap
330: Fixed wire
400: Fixed installation part
401: Insulation Installation Space
410: Anti-separation unit
500: Insulation
510: Insulating material
1000: Marine diesel engine exhaust gas purification device

Claims (7)

A main body having an inlet on one side, an outlet on the other side, and a catalyst filter module inside;
A fixed installation part provided along the circumference of the main body part, spaced apart at a predetermined interval in the longitudinal direction of the main body part to form an insulation installation space; and
It includes an insulating part installed on the outer surface of the main body and blocks heat radiating from the main body to the outside.
The above insulation part is inserted into the above insulation installation space, and the above insulation part is fixedly installed in a force-fit form by the spaced above fixed installation part.
The above insulation part has a plurality of insulation members that block heat radiating from the main body, and the insulation members installed in the insulation installation space are fitted together by the fixed installation part in which two or more of the insulation members are spaced apart with respect to the length direction of the main body, and the insulation members are installed in layers, and the insulation members arranged in the uppermost layer adjacent to the fixed installation part are fixedly installed so as to be prevented from detaching by the detachment prevention part provided on the upper end of the fixed installation part.
A marine diesel engine exhaust gas purification device, wherein the insulating members arranged adjacently with respect to the longitudinal direction of the main body are arranged so that their horizontal alignments do not match each other, and the insulating members stacked in the outer direction of the main body are arranged so that the insulating members arranged on the upper side and the insulating members arranged on the lower side have vertical alignments that do not match each other.
delete delete In the first paragraph,
The above insulation further includes a glass tape,
A marine diesel engine exhaust gas purification device, characterized in that the glass tape is configured to provide insulation to a protruding structure protruding outward from the main body that is not insulated by the insulating member.
In the first paragraph,
A marine diesel engine exhaust gas purification device, characterized in that a heating cable is provided between the main body and the insulation section to preheat the internal temperature of the main body to a predetermined temperature or higher.
(A) A step of installing a heating cable on the outer surface of the main body to preheat the internal temperature of the main body to a predetermined temperature or higher;
(B) a step of fixing and installing a plurality of insulating members on the outer surface of the main body; and
(C) A step of insulating the protruding structure protruding from the main body by wrapping glass tape around it,
Step (B) above,
(B1) A step of fitting and connecting two or more of the above insulating members into fixed installation parts spaced apart from each other in the longitudinal direction of the main body;
(B2) a step of fixing and installing the insulating member in the circumferential direction of the main body; and
(B3) Including a step of installing the insulating material in layers on top,
In the above step (B1), the insulating members arranged adjacent to each other in the longitudinal direction of the main body are installed so that their horizontal alignments do not match each other.
In the above step (B3), the insulating member laminated in the outer direction of the main body is installed so that the insulating member arranged on the upper side and the insulating member arranged on the lower side are not vertically aligned with each other.
A method for installing a diesel engine exhaust gas purification device for a ship, wherein the insulating member arranged on the uppermost layer adjacent to the fixed installation part in the above step (B3) is fixedly installed so as to be prevented from detaching by a detachment prevention member provided on the upper end of the fixed installation part.
In Article 6,
Step (A) above,
(A1) A step of installing a strap module in the above main body;
(A2) a step of fixing the heating cable, which has a straight section and a curved section formed in a predetermined shape, to the strap module; and
(A3) A method for installing a marine diesel engine exhaust gas purification device, characterized by including a step of installing a fixed wire to the outside of the heating cable fixedly installed to the strap module.

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