PCTC air duct device

Abstract

The invention relates to a PCTC air duct device, and relates to the field of ship construction technical equipment, the PCTC air duct device comprises a vertical support plate, the top end of the vertical support plate is fixedly connected with a frame guide assembly, one side of the frame guide assembly is an arc-shaped surface, and the bottom end of the arc-shaped surface is connected with the top end of the vertical support plate. The structure has the effects that the structure construction difficulty is reduced, meanwhile, the loading area of a vehicle cargo compartment area is increased, and the ventilation resistance is reduced.

Description

Technical Field

[0001] The present application relates to the field of shipbuilding technical equipment, and in particular to a PCTC air duct device. Background Art

[0002] The car ro-ro space (hereinafter referred to as the "cargo hold") is the cargo space that realizes the main function on the car ro-ro ship. It is used to load various types of vehicles whose fuel tanks contain gasoline / diesel for power combustion or other permitted goods or restricted dangerous goods. Different from the cargo holds of bulk carriers, oil tankers and other ships, during the cargo loading and unloading stage, the cargo holds of ro-ro ships require personnel to operate vehicles to get on and off the cargo holds and tie up vehicles. Vehicles will produce a large amount of automobile exhaust in the relatively closed cargo holds; at the same time, the loading of some restricted dangerous goods will lead to the accumulation of dangerous gases in the cargo holds. The primary design goal of ro-ro cargo hold ventilation is to inject enough fresh air to effectively discharge the exhaust gas and dangerous gases in the cargo hold and provide a safe working environment for the staff in the cargo hold.

[0003] The characteristics of the current ro-ro cargo hold ventilation system are the large number of large-sized structural air ducts and a large number of large-displacement fans on the open deck. The air ducts of the cargo hold ventilation system will occupy a certain amount of car loading space, and the fans of cargo hold ventilation are the main power load of ro-ro ships. Therefore, the reasonable and optimized design of the cargo hold ventilation duct and the distribution of air volume will be conducive to the loading of vehicles and reduce power consumption, which will be beneficial to the overall energy conservation and emission reduction of ro-ro ships. In addition, large-displacement fans and cargo hold ventilation will inevitably lead to large noise on the open deck where the fans are installed, in the air ducts, and at the outlets. Reasonable noise reduction measures and methods will help improve the comfort of the crew's work. In short, the cargo hold ventilation system is one of the most important ship systems of ro-ro ships. At the same time, it is different from the ventilation of other ship cargo holds. It has the characteristics of combining the characteristics of ro-ro ships and is a key system related to ship functions, personnel working environment, and energy conservation and emission reduction. The design of the cargo hold ventilation system is also one of the key designs of ro-ro ships.

[0004] With regard to the above-mentioned related technologies, the inventor believes that the conventional air duct layout scheme uses a vertical structure and an oblique structure to transition at the deck layout below the fan, and connects with the main hull structure of the cargo deck below. This oblique connection structure is complex and prone to stress concentration. The reinforcement structure needs to be strengthened with bulb flat steel. The difficulty and workload of docking the vertical structure and the oblique structure are relatively large. At the same time, this structure will occupy the space in the vehicle area, which is not conducive to air duct ventilation and has relatively large ventilation resistance. Summary of the invention

[0005] In order to reduce the difficulty of structural construction, increase the loading area of ​​the vehicle cargo compartment area, and reduce ventilation resistance, the present application provides a PCTC air duct device.

[0006] The present application provides a PCTC air duct device, which adopts the following technical solution:

[0007] A PCTC air duct device comprises a vertical support plate, the top end of which is fixedly connected to a frame guide assembly, one side of which is an arc surface, and the bottom end of which is connected to the top end of the vertical support plate.

[0008] Optionally, the frame guide assembly includes a vertically arranged support portion, an arc portion is arranged on one side of the support portion, and a distance is left between the arc portion and the support portion to form an air duct.

[0009] Optionally, a supporting elbow plate is fixedly connected between the bottom end of the supporting portion and the supporting plate, and the supporting elbow plate is located on a side of the supporting portion close to the arc-shaped portion.

[0010] Optionally, the arc center of the arc-shaped portion is located on a side away from the supporting portion.

[0011] Optionally, the arc-shaped portion is a flat iron structure, and one end of the arc-shaped portion close to the support plate is a flat iron toe end.

[0012] Optionally, the distance between the support portion and the arc-shaped portion gradually decreases along the height direction from top to bottom.

[0013] Optionally, the arc-shaped portion includes a first connection portion fixedly connected to the support plate, a bending portion is fixedly connected to the bottom end of the first connection portion, a second connection portion is fixedly connected to the side of the bending portion facing away from the first connection portion, and the first connection portion is arranged parallel to the second connection portion.

[0014] Optionally, the flat iron toe end is located at the bottom end of the first connecting portion and extends close to one side of the supporting portion.

[0015] Optionally, a top of one end of the support portion close to the arc-shaped portion and a top of one end of the arc-shaped portion close to the support portion are respectively fixedly connected with a connecting plate, and the connecting plate is perpendicular to the frame guide assembly.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. The new air duct layout structure effectively reduces the difficulty of duct structure construction, facilitates on-site construction, increases the cargo hold loading height, and reduces air volume loss.

[0018] 2. Make the vertical structural plate frame and the oblique structural plate frame into an arc structure transition, eliminate the butt weld, and the arc structure is completed during the steel plate processing stage.

[0019] 3. Change the original bulb flat steel structure into a flat iron structure, cancel the bottom triangular bracket, adopt the flat iron toe end, and use CNC integral cutting to reduce butt welds. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a PCTC air duct device in an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the adjustment segmented seam or air duct arrangement structure of a PCTC air duct device in an embodiment of the present application.

[0022] Explanation of the reference numerals: 1. support plate; 2. frame guide assembly; 21. support portion; 211. support elbow plate; 22. arc portion; 221. first connecting portion; 222. bending portion; 223. second connecting portion; 224. flat iron toe end; 23. air duct; 24. connecting plate. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] The car ro-ro space (hereinafter referred to as the "cargo hold") is the cargo space that realizes the main function on the car ro-ro ship. It is used to load various types of vehicles whose fuel tanks contain gasoline / diesel for power combustion or other permitted goods or restricted dangerous goods. Different from the cargo holds of bulk carriers, oil tankers and other ships, during the cargo loading and unloading stage, the cargo holds of ro-ro ships require personnel to operate vehicles to get on and off the cargo holds and tie up vehicles. Vehicles will produce a large amount of automobile exhaust in the relatively closed cargo holds; at the same time, the loading of some restricted dangerous goods will lead to the accumulation of dangerous gases in the cargo holds. The primary design goal of ro-ro cargo hold ventilation is to inject enough fresh air to effectively discharge the exhaust gas and dangerous gases in the cargo hold and provide a safe working environment for the staff in the cargo hold.

[0026] The characteristics of the current ro-ro cargo hold ventilation system are the large number of large-sized structural air ducts and a large number of large-displacement fans on the open deck. The air ducts of the cargo hold ventilation system will occupy a certain amount of car loading space, and the fans of cargo hold ventilation are the main power load of ro-ro ships. Therefore, the reasonable and optimized design of the cargo hold ventilation duct and the distribution of air volume will be conducive to the loading of vehicles and reduce power consumption, which will be beneficial to the overall energy conservation and emission reduction of ro-ro ships. In addition, large-displacement fans and cargo hold ventilation will inevitably lead to large noise on the open deck where the fans are installed, in the air ducts, and at the outlets. Reasonable noise reduction measures and methods will help improve the comfort of the crew's work. In short, the cargo hold ventilation system is one of the most important ship systems of ro-ro ships. At the same time, it is different from the ventilation of other ship cargo holds. It has the characteristics of combining the characteristics of ro-ro ships and is a key system related to ship functions, personnel working environment, and energy conservation and emission reduction. The design of the cargo hold ventilation system is also one of the key designs of ro-ro ships.

[0027] With regard to the above-mentioned related technologies, the inventor believes that the conventional air duct layout scheme uses a vertical structure and an oblique structure to transition at the deck layout below the fan, and connects with the main hull structure of the cargo deck below. This oblique connection structure is complex and prone to stress concentration. The reinforcement structure needs to be strengthened with bulb flat steel. The difficulty and workload of docking the vertical structure and the oblique structure are relatively large. At the same time, this structure will occupy the space in the vehicle area, which is not conducive to air duct ventilation and has relatively large ventilation resistance.

[0028] In order to reduce the difficulty of structural construction, increase the loading area of ​​the vehicle cargo compartment area, and reduce ventilation resistance, the present application provides a PCTC air duct device.

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The present application embodiment discloses a PCTC air duct device. Figure 1 , Figure 2 A PCTC air duct device includes a vertically arranged support plate 1, a frame guide assembly 2 is fixedly connected to the top of the support plate 1, and the outer side wall of the frame guide assembly 2 is flush with the outer side wall of the support plate 1.

[0031] The frame guide assembly 2 includes a support portion 21 located on one side, the bottom end of the support portion 21 is fixedly connected to the top end of the support plate 1, and the support portion 21 is a straight plate structure. An arc portion 22 is also vertically arranged on one side of the support plate 1, the bottom end of the arc portion 22 is fixedly connected to the support plate 1, and the top end of the arc portion 22 is flush with the top end of the support portion 21.

[0032] The arc portion 22 is an arc-shaped structure, and the side of the arc portion 22 close to the support portion 21, the side of the support portion 21 close to the arc portion 22, and the top of the support plate 1 form a chamber with an open top to form an air duct 23. The width of the air duct 23 gradually decreases along the height direction from top to bottom.

[0033] A connecting plate 24 is fixedly connected to the top of one side of the supporting portion 21 close to the arc portion 22 and the top of one side of the arc portion 22 close to the supporting portion 21 . The connecting plate 24 is vertically arranged to the frame guide assembly 2 , and the fan is supported by the connecting plate 24 .

[0034] The bottom end of the support plate 1 is fixedly connected to the main hull structure of the cargo hold deck, and the top end of the frame guide assembly 2 is relatively connected to the fan, and the air outlet end of the fan is relatively connected to the air duct 23, so that the pure gas blown out from the air outlet end of the fan enters the interior of the cargo hold through the air duct 23.

[0035] A support elbow plate 211 is fixedly connected to one side of the bottom end of the support portion 21 close to the arc portion 22 , and the bottom end of the support elbow plate 211 is fixedly connected to the support plate 1 , and the support elbow plate 211 provides support for the connection between the support portion 21 and the support plate 1 .

[0036] The arc-shaped portion 22 includes a first connection portion 221 at the bottom, the first connection portion 221 is fixedly connected to the support plate 1, and a bending portion 222 is fixedly connected to the bottom of the first connection portion 221, the bending portion 222 is an arc-shaped structure, and the center of the bending portion 222 is located on the side away from the support portion 21. A second connection portion 223 is vertically arranged at the top of the bending portion 222, the second connection portion 223 is fixedly connected to the bending portion 222, and the second connection portion 223 is arranged parallel to the first connection portion 221.

[0037] The arc portion 22 is made of a flat iron structure, and a flat iron toe end 224 is provided at the bottom end of the arc portion 22 close to the support portion 21 . The flat iron toe end 224 is extended along one side toward the support portion 21 , and the bottom end of the flat iron toe end 224 is fixedly connected to the support plate 1 .

[0038] The vertical structure plate frame and the oblique structure plate frame are made into an arc structure transition, the butt weld is eliminated, and the arc structure is completed during the steel plate processing stage. The original bulb flat steel structure is changed to a flat iron structure, the bottom triangular bracket is eliminated, and the flat iron toe end 224 is adopted. The CNC integral cutting method is adopted to reduce the butt weld.

[0039] For the schemes interfering with the mounting seams, interference balance is performed, and the arrangement of the segmented seams or the air duct 23 is adjusted to avoid interference with the air duct 23, thereby adding additional welds to the air duct 23 and reducing the difficulty of operation in a narrow area.

[0040] In this application, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A PCTC air duct device, characterized in that: It comprises a vertical support plate (1), the top end of which is fixedly connected to a frame guide assembly (2), one side of which is an arc-shaped surface, the bottom end of which is connected to the top end of the vertical support plate (1).

2. The PCTC air duct device according to claim 1, characterized in that: The frame guide assembly (2) comprises a vertically arranged support portion (21), an arc portion (22) is arranged on one side of the support portion (21), and a distance is left between the arc portion (22) and the support portion (21) to form an air duct (23).

3. The PCTC air duct device according to claim 2, characterized in that: A supporting elbow plate (211) is fixedly connected between the bottom end of the supporting portion (21) and the supporting plate (1), and the supporting elbow plate (211) is located on a side of the supporting portion (21) close to the arc-shaped portion (22).

4. The PCTC air duct device according to claim 2, characterized in that: The arc center of the arc-shaped portion (22) is located on a side away from the supporting portion (21).

5. The PCTC air duct device according to claim 2, characterized in that: The arc-shaped portion (22) is a flat iron structure, and one end of the arc-shaped portion (22) close to the support plate (1) is a flat iron toe end (224).

6. The PCTC air duct device according to claim 2, characterized in that: The distance between the support portion (21) and the arc-shaped portion (22) gradually decreases along the height direction from top to bottom.

7. The PCTC air duct device according to claim 5, characterized in that: The arc-shaped portion (22) comprises a first connection portion (221) fixedly connected to the support plate (1); a bent portion (222) is fixedly connected to the bottom end of the first connection portion (221); a second connection portion (223) is fixedly connected to the side of the bent portion (222) facing away from the first connection portion (221); and the first connection portion (221) and the second connection portion (223) are arranged in parallel.

8. The PCTC air duct device according to claim 7, characterized in that: The flat iron toe end (224) is located at the bottom end of the first connecting portion (221) and extends close to one side of the supporting portion (21).

9. The PCTC air duct device according to claim 2, characterized in that: A top portion of one end of the support portion (21) close to the arc-shaped portion (22) and a top portion of one end of the arc-shaped portion (22) close to the support portion (21) are respectively fixedly connected with a connecting plate (24), and the connecting plate (24) is perpendicular to the frame guide assembly (2).

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