CN217100376U

CN217100376U - Chemical tanker cargo tank channel

Info

Publication number: CN217100376U
Application number: CN202123187636.6U
Authority: CN
Inventors: 吴安; 周睿萌; 童南汨
Original assignee: Hudong Zhonghua Shipbuilding Group Co Ltd
Current assignee: Hudong Zhonghua Shipbuilding Group Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-08-02
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to a chemical ship liquid cargo hold channel, which is arranged in each cabin in a subsection way and comprises a hatch cover (1), a straight ladder (2), a middle platform (3), a middle inclined ladder (4), a terminal platform (5) and a terminal inclined ladder (6); the upper end of the middle inclined ladder (4) is connected with the middle platform (3), and the lower end of the middle inclined ladder (4) is connected with the tail end platform (5); the upper end of the straight ladder (2) is provided with a hatch cover (1) for people to enter and exit the cabin, and the lower end of the straight ladder (2) is connected with the middle platform (3); the upper end of the tail end inclined ladder (6) is connected with the tail end platform (5), and the lower end of the tail end inclined ladder (6) is fixed on a cabin bottom plate through ladder feet (7). The utility model is formed by combining the templates, saves the space in the cabin and is convenient for site construction and precision control under the condition of meeting the standard; the efficiency of cabin washing is improved; the service life of the liquid cargo tank channel is prolonged.

Description

Chemical tanker cargo tank channel

Technical Field

The utility model relates to a shipbuilding field, concretely relates to chemicals ship cargo tank passageway.

Background

Chemical ships are cargo ships used to carry various toxic, flammable, fugitive, or corrosive chemicals. Chemical ships contain various types of tanks, the most central of which is a cargo tank. The cleaning of the cargo tanks is one of the important maintenance tasks for a chemical tanker each time the cargo is reloaded. The cargo tanks of the chemical carrier are all provided with a set of tank washing system, so that attachments, sediments and the like on the inner walls, the bottoms and internal structures of the cargo tanks can be washed to the bottom of the tank, and then the attachments, the sediments and the like are sucked by a tank sweeping system and discharged to a sump oil tank, and sometimes workers need to enter the tank for operation. In order to facilitate cleaning of the empty cargo tank by workers when necessary, a channel for people to go up and down is often required to be arranged in the cargo tank. However, the existing cargo tank channel arrangement method has some problems: 1. in the sailing process of the ship, the channel of the liquid cargo tank is in rigid connection and can be impacted by the dynamic load of liquid, so that the channel is damaged; 2. the adoption of angle steel can form dead corners which are difficult to clean, and the adoption of flat steel is beneficial to cleaning, but the strength requirement of the structure is difficult to ensure under the condition of the same weight as the angle steel; 3. the transverse bulkhead of the chemical cargo tank of the chemical tanker usually adopts a vertical slotted bulkhead, the structure of upper piers and lower piers is adopted to be connected with a main deck, an inner bottom and bulkheads of a main hull, and the attachment at the connection part of the plate blocks can not be welded within 50 mm, which increases the difficulty for arranging a platform in a liquid cargo tank channel.

In the prior art, chinese patent CN 113581386 a relates to a special-shaped vertical ladder for an inclined bottom passage of a cargo hold of an ultra-large liquefied gas carrier, which includes: the two ladder frames are parallel to the rib position direction of the cargo compartment at the mounting position and are fixed on the inner wall of the cargo compartment; the ladder comprises a plurality of steps, wherein each step is horizontally fixed between two ladder frames, and the included angle between the stepping surface of each step and each ladder frame is an acute angle or an obtuse angle. However, the vertical ladder cannot be applied to a chemical ship cargo tank and cannot meet the requirements of workers on upper and lower cabins during cleaning operation. Therefore, a cargo tank channel of a chemical ship needs to be adopted to meet the requirements of workers on an upper channel and a lower channel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current cargo tank passageway and occupy too much space, some problems that difficult washing and life are short provide a chemicals ship cargo tank passageway, and through the aggregate erection of each module, when satisfying the cargo tank and wasing, the staff utilizes the demand of passageway business turn over cargo tank.

In order to achieve the purpose of the utility model, the utility model adopts the technical scheme as follows:

a chemical tanker cargo tank tunnel arranged in sections in each of the cabins, the chemical tanker cargo tank tunnel comprising a hatch, a straight ladder, a middle platform, a middle inclined ladder, a terminal platform and a terminal inclined ladder; the upper end of the middle inclined ladder is connected with the middle platform, and the lower end of the middle inclined ladder is connected with the tail end platform; the upper end of the straight ladder is provided with a hatch cover for people to enter and exit the cabin, and the lower end of the straight ladder is connected with the middle platform; the upper end of the tail end inclined ladder is connected with the tail end platform, and the lower end of the tail end inclined ladder is fixed on the cabin bottom plate through ladder feet.

Furthermore, the middle inclined ladder and the tail end inclined ladder are obliquely arranged relative to the cabin bottom plate, and each of the middle inclined ladder and the tail end inclined ladder comprises an inclined ladder frame, an inclined ladder step and an inclined ladder handrail; the middle of the inclined ladder frame is evenly provided with a plurality of inclined ladder steps, and a pair of inclined ladder handrails is arranged on the inclined ladder frames on the two sides of each inclined ladder step.

Furthermore, the middle platform and the tail end platform are horizontally arranged relative to the cabin bottom plate, and each of the middle platform and the tail end platform comprises a platform frame, a platform step and a platform protection railing; the platform frame is a rectangular frame, and a platform step is arranged in the platform frame; and a platform protection railing is arranged on the rectangular frame of the platform frame.

Furthermore, the inclined ladder frame of the tail end inclined ladder is connected with the ladder feet through bolts, the inclined ladder frame is connected with the platform frame through bolts, and bolt holes corresponding to the bolts are all long-waist circular holes in the horizontal direction and the vertical direction.

Furthermore, the inclined ladder frame and the platform frame are made of U-shaped steel, and the folded edges of the U-shaped steel face outwards.

Further, the vertical ladder is vertically placed; the hatch cover is rotatably connected with the deck of the ship body, is closed in a normal state, and is opened for people to enter and exit when the cabin is cleaned.

Further, the chemical tanker cargo tank channels of the cargo tanks on the two sides of the bow are arranged in the longitudinal compartments, the other compartments are arranged in the transverse compartments, and the transverse bulkhead is a horizontal tank type bulkhead.

Based on the technical scheme, the chemical carrier liquid cargo tank channel has the following technical effects:

1. the channels of each cabin are arranged on different sections, so that the site construction and the precision control are convenient, the space in the cabin is saved, and the cabin washing efficiency is obviously improved.

2. Because pass through bolted connection between ladder frame and ladder foot and platform, the bolt hole is long waist circular port on level and vertical direction to make the ladder frame have certain degree of freedom, when the ladder received the impact of liquid, played certain cushioning effect, the reduction fracture condition takes place.

3. Because the inclined ladder frame and the platform frame adopt U-shaped steel, and the hem of the U-shaped steel is outward, the inclined ladder frame and the platform frame are more convenient to clean compared with angle steel and flat steel under the condition of meeting the strength requirement of the structure.

4. Because the transverse bulkhead adopts the horizontal trough type bulkhead, the bulkhead structure has better continuity, the possibility of larger stress is reduced, and the bulkhead can not cause serious sewage adhesion.

5. Because the liquid cargo tank channel is assembled in a modularized mode, the position of a channel platform and the angle of supporting legs can be adjusted, and therefore the requirement for strength is met, and meanwhile the liquid cargo tank channel can be smoothly arranged in a limited space.

Drawings

Fig. 1 is a plan view of the channel layout of the cargo tank of the present invention.

Fig. 2 is a schematic view of the arrangement of the bow cabin passage of the present invention.

Fig. 3 is a schematic view of another cabin passage arrangement of the present invention.

Fig. 4 is a front view of a cargo tank passage of the present invention.

Fig. 5 is a side view of a cargo tank passageway according to the present invention.

Fig. 6 is a detailed view of the inclined ladder and the platform of the cargo tank passage of the present invention.

Fig. 7 is a schematic view of the joint of the inclined ladder and the platform of the cargo tank channel of the present invention.

Fig. 8 is a front view of the cargo tank passage platform and the supporting legs of the present invention.

Fig. 9 is a side view of the cargo tank passage platform and the supporting legs of the present invention.

Fig. 10 is a top view of the cargo tank passage platform and the supporting legs of the present invention.

FIG. 11 is a schematic cross-sectional view of U-shaped steel of the present invention.

Fig. 12 is a schematic view of a horizontal channel bulkhead of the present invention.

Description of reference numerals: 1-cabin cover 2-straight ladder 3-middle platform 4-middle inclined ladder 5-end platform 6-end inclined ladder 7-ladder feet 8-inclined ladder frame 9-inclined ladder step 10-inclined ladder handrail 11-platform frame 12-platform step 13-platform protective railing 14-horizontal groove type cabin wall 15-supporting feet

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below by way of specific examples shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The embodiment of the utility model provides a chemicals ship cargo tank passageway. As shown in FIG. 1, the cargo hold of a chemical ship is divided into 39 tanks, and the total size of the tanks is 19 specifications with different sizes, and the tank capacity is 400m ³ To 2500m ³ And unequal, considering the limitation of part of cabin space, chemical ship liquid cargo cabin channels of liquid cargo cabins on two sides of the bow are arranged in longitudinal compartments (the longitudinal compartments are along the length direction of the ship), other compartments, chemical ship liquid cargo cabin channels are arranged in transverse compartments (the transverse compartments are along the width direction of the ship), the transverse compartments are horizontal trough type bulkheads 14, and the horizontal trough type bulkheads 14 are adopted, so that the structural strength of the liquid cargo cabins can be improved, the cleaning operation can be facilitated, and the smooth installation of the liquid cargo cabin channels is ensured. As shown in fig. 2 to 12, the chemical carrier cargo tank passageway, which includes a deck lid 1, a straight ladder 2, a middle platform 3, a middle inclined ladder 4, an end platform 5, and an end inclined ladder 6, is sectionally arranged in each of the compartments; the upper end of the middle inclined ladder 4 is connected with the middle platform 3, and the lower end of the middle inclined ladder 4 is connected with the tail end platform 5; the upper end of the straight ladder 2 is provided with a hatch cover 1 for people to enter and exit the cabin, and the lower end of the straight ladder 2 is connected with a middle platform 3; the upper end of the tail end inclined ladder 6 is connected with the tail end platform 5, and the lower end of the tail end inclined ladder 6 is fixed on the bottom plate of the cabin through ladder feet 7.

The middle inclined ladder 4 and the tail end inclined ladder 6 are obliquely arranged relative to the cabin bottom plate, and the middle inclined ladder 4 and the tail end inclined ladder 6 respectively comprise an inclined ladder frame 8, an inclined ladder step 9 and an inclined ladder handrail 10; two the inclined ladder step 9 is evenly provided with in the middle of the inclined ladder step 8, be provided with a pair of inclined ladder handrail 10 on the inclined ladder step 8 of the inclined ladder step 9 both sides for guarantee staff's safety.

The middle platform 3 and the tail end platform 5 are horizontally arranged relative to the bottom plate of the cabin and are fixed on a horizontal groove-shaped bulkhead 14 through supporting legs 15, as shown in fig. 12, the left and right continuous groove-shaped structures in the drawing are both horizontal groove-shaped bulkheads 14, the horizontal groove-shaped bulkheads 14 are provided with a plurality of bending points and jointed board seam lines (arrows in the drawing), the bending points and the board seam lines can be avoided by adjusting the platform positions, and the middle platform 3 and the tail end platform 5 respectively comprise a platform frame 11, a platform step 12 and a platform protection railing 13; the platform frame 11 is a rectangular frame, and a platform step 12 is arranged in the platform frame 11; a platform protection railing 13 is arranged on the rectangular frame of the platform frame 11 to ensure the safety of workers.

The inclined ladder frame 8 of terminal inclined ladder 6 with ladder foot 7 passes through bolted connection, inclined ladder frame 8 with platform frame 11 all passes through bolted connection, with the corresponding bolt hole of bolt is long waist circular port in level and vertical direction, and the bolt hole adopts long waist circular port to guarantee that channel part can have certain degree of freedom when receiving liquid impact, avoids rigid connection to cause structural damage.

The inclined ladder frame 8 and the platform frame 11 are made of U-shaped steel (the U-shaped steel is steel with a cross section like an English letter U), and the folded edge of the U-shaped steel faces outwards, and the included angle between the folded edge and the bottom edge is 43 degrees. The U-shaped steel meets the structural strength requirement and is convenient to clean. However, in order to avoid mutual extrusion between adjacent modules, a partial structure of U-shaped steel is adopted to replace the complete U-shaped steel in some structures at the junction of the inclined ladder frame 8 and the platform frame 11.

The vertical ladder 2 is vertically placed, the hatch cover 1 is rotatably connected with a deck of a ship body, the hatch cover 1 is closed in a normal state, and when the cabin is cleaned, the hatch cover 1 is opened for people to enter and exit.

Through tests, the application of the chemical ship liquid cargo tank channel saves the space in the tank; the efficiency of cabin washing is obviously improved; the bolt hole is long waist circular port design extension channel member's life in the level and vertical direction, when satisfying the cleaning operation completely, the demand of staff business turn over cargo tank.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chemical tanker cargo tank channel, characterized in that the chemical tanker cargo tank channel is arranged in sections in each tank, the chemical tanker cargo tank channel comprising a hatch (1), a straight ladder (2), a middle platform (3), a middle inclined ladder (4), a terminal platform (5) and a terminal inclined ladder (6); the upper end of the middle inclined ladder (4) is connected with the middle platform (3), and the lower end of the middle inclined ladder (4) is connected with the tail end platform (5); the upper end of the straight ladder (2) is provided with a hatch cover (1) for people to enter and exit the cabin, and the lower end of the straight ladder (2) is connected with the middle platform (3); the upper end of the tail end inclined ladder (6) is connected with the tail end platform (5), and the lower end of the tail end inclined ladder (6) is fixed on a cabin bottom plate through ladder feet (7).

2. A chemical tanker cargo tank aisle according to claim 1, wherein the middle ramp (4) and the end ramps (6) are arranged inclined with respect to the tank floor, the middle ramp (4) and the end ramps (6) each comprising a ramp ladder rack (8), a ramp step (9) and a ramp handrail (10); the middle of the two inclined ladder steps (8) is uniformly provided with a plurality of inclined ladder steps (9), and a pair of inclined ladder handrails (10) is arranged on the inclined ladder steps (8) at two sides of the inclined ladder steps (9).

3. A chemical tanker cargo tank aisle according to claim 2, where the intermediate platforms (3) and the end platforms (5) are both arranged horizontally with respect to the tank floor, the intermediate platforms (3) and the end platforms (5) each comprising a platform frame (11), a platform tread (12) and a platform protection railing (13); the platform frame (11) is a rectangular frame, and a platform step (12) is arranged in the platform frame (11); and a platform protection railing (13) is arranged on the rectangular frame of the platform frame (11).

4. A cargo tank passageway of a chemical tanker according to claim 3, wherein the ramp ladder frames (8) of the end ramps (6) are bolted to the ladder legs (7), the ramp ladder frames (8) are bolted to the platform frame (11), and the bolt holes corresponding to the bolts are all oblong holes in the horizontal and vertical directions.

5. A chemical tanker cargo tank aisle according to claim 4, characterized in that the ramp ladder frames (8) and platform frames (11) are U-shaped steel, and the U-shaped steel is flanged outwards.

6. A chemical tanker cargo tank aisle according to claim 1, where the vertical ladders (2) are placed vertically; the hatch cover (1) is rotatably connected with a deck of the ship body, the hatch cover (1) is closed in a normal state, and the hatch cover (1) is opened for people to enter and exit when the cabin is cleaned.

7. A chemical tanker cargo tank channel as defined in claim 1 wherein the chemical tanker cargo tank channel of a cargo tank on either side of the bow is disposed in a longitudinal compartment with the remainder of the compartments, the chemical tanker cargo tank channel is disposed in a transverse compartment, and the transverse compartment wall is a horizontal channel-type bulkhead.