A kind of ship exhaust pipe external thermal insulation fixing device

Abstract

The utility model relates to a kind of ship exhaust pipe external insulation fixing device, which belongs to the technical field of ship design.The upper and lower ends of the exhaust pipe body are respectively provided with exhaust pipe upper flange and exhaust pipe lower flange in the device, and a fixing device is further sleeved on the exhaust pipe body, the outer periphery of the fixing plate is provided with a clamping table, and a clamping table groove is formed between the inner wall of the clamping table and the outer wall of the exhaust pipe body.The outer side of the exhaust pipe body is sequentially provided with an insulation layer and a steel cylinder, and the bottom end of the insulation layer and the steel cylinder is arranged in the clamping table groove and supported by the fixing plate.The device prevents the external insulation of the exhaust pipe from falling off, the insulation layer from shifting or delaminating, and other problems in the vertical direction.

Description

Technical Field

[0001] This utility model relates to an external insulation and fixing device for ship exhaust pipes, which belongs to the field of ship design technology. Background Technology

[0002] During shipbuilding, the exhaust pipes of the main engine, generators, incinerators, boilers, etc., require external insulation. The securing of this external insulation must balance heat insulation, high-temperature resistance, shock resistance, and stability. During ship operation, under prolonged high temperatures and vibrations, the insulation material may powder or easily detach vertically. In other words, the main drawback of existing technology is that the vibration resistance of the external insulation for exhaust pipes deteriorates over long-term operation, leading to problems such as vertical detachment, displacement, or delamination of the insulation layer, making later repair and replacement difficult. Utility Model Content

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a fixing device for the external insulation of ship exhaust pipes, completely solving problems such as detachment, displacement, or delamination of the external insulation in the vertical direction. By adding a fixing device, the reliability of the vertical fixing of the external insulation of the exhaust pipe can be significantly improved.

[0004] The technical solution adopted by this utility model is as follows: an external insulation fixing device for a ship exhaust pipe, wherein an upper flange and a lower flange are respectively provided at the upper and lower ends of the exhaust pipe body; a fixing device is also sleeved on the exhaust pipe body, the fixing device adopts a fixing plate with a locking platform on the outer periphery, and a locking platform groove is formed between the inner wall of the locking platform and the outer wall of the exhaust pipe body; the fixing plate is a disc structure with a central fixing plate inner hole, and fixing plate through holes are evenly distributed on the fixing plate, and the fixing plate through holes are locked to the flange holes by bolts, so that the fixing device is fixedly connected to the lower flange of the exhaust pipe;

[0005] An insulation layer and a steel plate cylinder are sequentially arranged on the outer side of the exhaust pipe body. The bottom ends of the insulation layer and the steel plate cylinder are set in the mounting groove and supported by a fixing plate.

[0006] Furthermore, the diameter of the through hole in the fixing plate is the same as the diameter of the flange hole.

[0007] Furthermore, the diameter of the inner hole of the fixing plate is larger than the diameter of the exhaust pipe body, but smaller than the diameter of the steel plate cylinder.

[0008] Furthermore, the steel plate cylinder is made of stainless steel or galvanized steel.

[0009] Furthermore, the card platform can be a ring-shaped card platform or a segmented card platform.

[0010] Compared with existing technologies, this utility model has the following advantages: By adding a fixing device, this utility model prevents problems such as the external insulation of the vertical exhaust pipe falling off, the insulation layer shifting, or delaminating. The fixing device is connected to the flange with bolts, avoiding welding operations; during other work operations, the fixing device can move freely along the exhaust pipe without affecting other processes. Simultaneously, in this fixing device, the insulation layer and the iron plate cylinder are supported and placed in the clamping groove, further limited by the clamping groove, thus improving the service life of the external insulation layer. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of an external insulation and fixing device for ship exhaust pipes.

[0013] Figure 2 This is the front view of the ring-shaped cassette fixing device.

[0014] Figure 3 This is a cross-sectional view of the ring-shaped clamp fixing device.

[0015] Figure 4 This is the front view of the segmented card holder fixing device.

[0016] Figure 5 This is a sectional view of the segmented card holder fixing device.

[0017] In the diagram: 1. Exhaust pipe body, 2. Insulation layer, 3. Steel plate cylinder, 4. Lower flange of exhaust pipe, 5. Upper flange of exhaust pipe, 6. Fixing device, 7. Fixing plate, 8. Inner hole of fixing plate, 9. Through hole of fixing plate, 10. Clamping platform, 11. Inner wall of clamping platform, 12. Annular clamping platform, 13. Segmented clamping platform, 14. Flange hole. Detailed Implementation

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0022] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Example 1

[0026] Figure 1 , Figure 2 and Figure 3 An external insulation fixing device for a ship's exhaust pipe is shown. The outer diameter of the exhaust pipe body 1 is greater than 318.5 mm, and an annular retaining plate 12 is used. An upper flange 5 and a lower flange 4 are respectively provided at the upper and lower ends of the exhaust pipe body 1. A fixing device 6 is also fitted on the exhaust pipe body 1. The fixing device 6 uses a retaining plate 7 with a retaining plate 7 with a retaining plate 10 on its outer periphery. A retaining plate groove is formed between the retaining plate inner wall 11 of the retaining plate 10 and the outer wall of the exhaust pipe body 1. In this embodiment, the retaining plate 10 is an annular retaining plate 12.

[0027] The fixing plate 7 has a circular structure with an inner hole 8 at its center. The fixing plate 7 has evenly distributed fixing plate through holes 9. The fixing plate through holes 9 are locked to the flange hole 14 by bolts. The diameter of the fixing plate through holes 9 is the same as the diameter of the flange hole 14, so that the fixing device 6 is fixedly connected to the lower flange 4 of the flue pipe.

[0028] An insulation layer 2 and a steel plate cylinder 3 are sequentially installed on the outer side of the exhaust pipe body 1. The bottom ends of the insulation layer 2 and the steel plate cylinder 3 are set in the mounting groove and supported by the fixing plate 7. The diameter of the inner hole 8 of the fixing plate is slightly larger than the diameter of the exhaust pipe body 1 and smaller than the diameter of the steel plate cylinder 3.

[0029] The steel plate cylinder 3 is made of stainless steel plate or galvanized steel plate.

[0030] When using the above technical solution, the following steps are included:

[0031] S1. Weld the lower flange 4 of the exhaust pipe to the end of the exhaust pipe body 1;

[0032] S2. The fixing device 6 is fitted onto the exhaust pipe body 1. The diameter of the inner hole 8 of the fixing plate is slightly larger than the diameter of the exhaust pipe body 1. The fixing device 6 can move freely on the exhaust pipe body 1, which facilitates the completion of other processing steps of the exhaust pipe body.

[0033] S3. Align the through hole 9 of the fixing plate with the flange hole 14 of the lower flange 4 of the exhaust pipe, and then use bolts to lock the fixing device 6 to the lower flange 4 of the exhaust pipe.

[0034] S4. The insulation layer 2 is wrapped around the outside of the exhaust pipe body 1 according to the specified thickness, and then the steel plate cylinder 3 is wrapped around the insulation layer 2 and secured with rivets.

[0035] S5. The diameter of the mounting platform 10 is slightly larger than the diameter of the steel plate cylinder 3. During installation, the steel plate cylinder 3 is fixed in the mounting platform 10 by manual operation and its own weight, and is supported by the fixing plate 7 to prevent the steel plate cylinder 3 from falling off in the vertical direction.

[0036] Example 2

[0037] Figure 1 , Figure 4 and Figure 5 This paper illustrates an external insulation and fixing device for a ship's exhaust pipe, wherein the outer diameter of the exhaust pipe body 1 is less than or equal to 318.5 mm and a segmented clamping platform is used.

[0038] The upper and lower ends of the exhaust pipe body 1 are respectively provided with an upper exhaust pipe flange 5 and a lower exhaust pipe flange 4. The exhaust pipe body 1 is also fitted with a fixing device 6. The fixing device 6 adopts a fixing plate 7 with a locking platform 10 on its outer periphery. The inner wall 11 of the locking platform 10 and the outer wall of the exhaust pipe body 1 form a locking platform groove. In this embodiment, the locking platform 10 adopts a segmented locking platform 13.

[0039] The fixing plate 7 has a circular structure with an inner hole 8 at its center. The fixing plate 7 has evenly distributed fixing plate through holes 9. The fixing plate through holes 9 are locked to the flange hole 14 by bolts. The diameter of the fixing plate through holes 9 is the same as the diameter of the flange hole 14, so that the fixing device 6 is fixedly connected to the lower flange 4 of the flue pipe.

[0040] An insulation layer 2 and a steel plate cylinder 3 are sequentially installed on the outer side of the exhaust pipe body 1. The bottom ends of the insulation layer 2 and the steel plate cylinder 3 are set in the mounting groove and supported by a fixing plate 7. The diameter of the inner hole 8 of the fixing plate is slightly larger than the diameter of the exhaust pipe body 1 and smaller than the diameter of the steel plate cylinder 3. The steel plate cylinder 3 is made of stainless steel or galvanized steel.

[0041] When using the above technical solution, the following steps are included:

[0042] S1. Weld the lower flange 4 of the exhaust pipe to the end of the exhaust pipe body 1;

[0043] S2. The fixing device 6 is fitted onto the exhaust pipe body 1. The diameter of the inner hole 8 of the fixing plate is slightly larger than the diameter of the exhaust pipe body 1. The fixing device 6 can move freely on the exhaust pipe body 1, which facilitates the completion of other processing steps of the exhaust pipe body.

[0044] S3. Align the through hole 9 of the fixing plate with the flange hole 14 of the lower flange 4 of the exhaust pipe, and then use bolts to lock the fixing device 6 to the lower flange 4 of the exhaust pipe.

[0045] S4. The insulation layer 2 is wrapped around the outside of the exhaust pipe body 1 according to the specified thickness, and then the steel plate cylinder 3 is wrapped around the insulation layer 2 and secured with rivets.

[0046] S5. The diameter of the segmented mounting platform 13 is slightly larger than the diameter of the steel plate cylinder 3. During installation, the steel plate cylinder 3 is fixed in the segmented mounting platform 13 by manual operation and its own weight, and is supported by the fixing plate 7 to prevent the steel plate cylinder 3 from falling off in the vertical direction.

[0047] A body of an external insulation fixing device for a ship exhaust pipe, comprising a fixing device 6 and an annular or segmented slot (the size of the small circular opening in the body is consistent with the size of the flange hole of the exhaust pipe), wherein the fixing device 6 and the mounting plate 10 (annular or segmented mounting plate) are welded together.

[0048] When the flange on the exhaust pipe is not welded, the fixed device body is inserted into the pipe during pipeline processing. The inner diameter of the fixed device body is slightly larger than the pipe diameter to ensure that the fixed device body can move freely on the pipeline to complete other processing procedures of the exhaust pipe.

[0049] During the pipeline installation phase, the lower flange 4 of the exhaust pipe is fixed to the fixing device 6 with bolts and nuts. The insulation layer 2 and the galvanized steel plate 3 of the component are placed on the fixing device 6, which provides support. The annular groove or segmented groove (different types can be selected according to the pipe diameter: segmented grooves are used for pipe diameters less than or equal to 318.5mm; annular grooves are used for pipe diameters greater than 318.5mm) prevents the insulation layer 2 and the galvanized steel plate 3 from sliding downward, falling off, or shaking under the action of vibration and gravity; ensuring that the external insulation of the exhaust pipe does not fall off in the vertical direction during long-term operation of the ship.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for fixing external insulation of ship exhaust pipes, characterized in that, The upper and lower ends of the exhaust pipe body (1) are respectively provided with an upper exhaust pipe flange (5) and an exhaust pipe lower flange (4); a fixing device (6) is also fitted on the exhaust pipe body (1). The fixing device (6) adopts a mounting plate (7) with a mounting platform (10) on the outer periphery. The mounting platform (10) forms a mounting platform groove between the inner wall (11) of the mounting platform (10) and the outer wall of the exhaust pipe body (1); the fixing plate (7) is a disc structure with a fixing plate inner hole (8) in the center. Fixing plate through holes (9) are evenly distributed on the fixing plate (7). The fixing plate through holes (9) are locked with the flange hole (14) by bolts, so that the fixing device (6) is fixedly connected to the exhaust pipe lower flange (4); The outer side of the exhaust pipe body (1) is provided with an insulation layer (2) and a steel plate cylinder (3). The bottom ends of the insulation layer (2) and the steel plate cylinder (3) are set in the slot and supported by a fixing plate (7).

2. The external insulation fixing device for ship exhaust pipes according to claim 1, characterized in that: The diameter of the through hole (9) in the fixing plate is the same as the diameter of the flange hole (14).

3. The external insulation fixing device for ship exhaust pipes according to claim 2, characterized in that: The diameter of the inner hole (8) of the fixed plate is greater than the diameter of the exhaust pipe body (1) and smaller than the diameter of the steel plate cylinder (3).

4. The external insulation fixing device for a ship exhaust pipe according to claim 3, characterized in that: The steel plate cylinder (3) is made of stainless steel plate or galvanized steel plate.

5. The external insulation fixing device for ship exhaust pipes according to claim 4, characterized in that: The carding platform (10) adopts a ring carding platform (12) or a segmented carding platform (13). The segmented carding platform (13) is used when the diameter of the exhaust pipe body (1) is less than or equal to 318.5mm, and the ring carding platform (12) is used when the diameter of the exhaust pipe body (1) is greater than 318.5mm.

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