Bulk carrier top pier side plate ventilation equipment

Abstract

The present invention discloses a ventilation device for the top pier side plate of a bulk carrier, which comprises a shell, a sealing plate is fixedly provided at the rear end of the shell, and a first ventilation hole is provided on the sealing plate; a second ventilation hole is provided on the upper end surface of the shell; a first blocking block and a second blocking block are fixedly provided on the inner wall of the upper end surface of the shell; a first separating valve plate and a second separating valve plate are provided in the shell; the bottom of the second separating valve plate and the shell are connected by a torsion spring; a wedge-shaped groove is provided on the inner side surface of the first separating valve plate, and a connecting rod is provided in the wedge-shaped groove; a wedge-shaped block is provided on the outer side surface of the second separating valve plate, and the wedge-shaped block is slidably arranged in the wedge-shaped groove; the connecting rod is located above the wedge-shaped block; a compression spring is provided between the connecting rod and the wedge-shaped block. The present invention can ensure that the harmful gas accumulated in the top pier empty compartment can enter the cargo hold and be discharged, and can also prevent the cargo from entering the top pier empty compartment when fully loaded, so as to provide a safe and comfortable passage space for the crew and reduce cargo damage.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a ventilating device for a top pier side plate of a bulk carrier. Background Art

[0002] Because bulk carriers are loaded with cargoes such as coal and fertilizers during operation, various harmful gases may be generated. These gases can be discharged into the cargo hold through the ventilation device of the hatch cover, but some harmful gases will also enter the empty compartment inside the top pier through the hatch at the bottom plate of the top pier. In addition, the empty compartment itself will also generate harmful gases due to long-term closure. If a crew member enters this empty compartment area filled with harmful gases through the hatch on the main deck, he may experience dizziness or even shock. In the past, there have been tragic accidents in which personnel have fallen directly from the top pier into the cargo hold, resulting in casualties.

[0003] To this end, the industry often adopts the method of adding a row of air vents on the side plate of the top pier near the main deck to make the gas exchange between the top pier empty hold and the cargo hold more unobstructed. However, this method has many problems. The first is the problem of cargo accumulation. When the cargo hold is fully loaded, the cargo can enter the top pier empty hold through these rows of air vents, which not only causes unnecessary cargo damage, but also increases the workload of cleaning the empty hold; secondly, due to the accumulation of cargo on the empty hold floor, it will affect personnel inspection and daily passage, and there is a possibility of causing slipping and danger.

[0004] There are currently two approaches to the design of the top pier side plates of bulk carriers. One is to not add rows of vents, which may cause the accumulation of harmful gases in the empty compartments and cause casualties; the other is to add rows of vents without taking any measures, or to add very fine steel wire filters, which will cause the accumulation of goods and cause the feet of passers-by to slip and become dangerous. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a ventilating device for the top pier side plate of a bulk carrier.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A ventilating device for the top pier side plate of a bulk carrier, comprising a shell, both ends of which are open; a sealing plate is fixedly provided at the rear end of the shell, and a first ventilating through hole is opened on the sealing plate; a second ventilating through hole is opened on the upper end surface of the shell; a first blocking block and a second blocking block are fixedly provided on the inner wall of the upper end surface of the shell; the first blocking block is arranged in front of the second ventilating through hole, and the second blocking block is arranged on the inner wall of the shell between the second ventilating through hole and the sealing plate; a first separating valve sheet movable between the first blocking block and the second blocking block and a first separating valve sheet located at the first separating valve sheet are provided in the shell. A second partition valve plate on the inner side of the partition valve plate; the top of the first partition valve plate abuts against the inner wall of the upper end surface of the shell between the first blocking block and the second blocking block; the bottom of the second partition valve plate abuts against the inner wall of the lower end surface of the shell; the bottom of the second partition valve plate and the shell are connected by a torsion spring; a wedge-shaped groove is provided on the inner side surface of the first partition valve plate, and a connecting rod is provided in the wedge-shaped groove; a wedge-shaped block is provided on the outer side surface of the second partition valve plate, and the wedge-shaped block is slidably arranged in the wedge-shaped groove; the connecting rod is located above the wedge-shaped block; a compression spring is provided between the connecting rod and the wedge block.

[0008] The upper end of the compression spring is fixedly connected to the connecting rod; the lower end of the compression spring abuts against the top of the wedge block.

[0009] The first blocking block is in a strip shape.

[0010] The second blocking block is in a strip shape.

[0011] The first ventilation hole is circular.

[0012] The second ventilation hole is rectangular.

[0013] The cover plate is provided with bolt holes for bolt connection with the top pier side plates.

[0014] The upper end surface of the shell is an inclined surface extending obliquely downward from the rear end of the shell to the front end of the shell.

[0015] The first partition valve plate and the second partition valve plate form a closing component that seals the inner cavity of the housing.

[0016] The shell and the sealing plate are both made of metal.

[0017] The beneficial effects of the present invention are as follows: the present invention can ensure that the harmful gases accumulated in the empty hold of the top pier can enter the cargo hold and be discharged through the rows of air vents added to the side plates of the top pier, and can also prevent the cargo from entering the empty hold of the top pier through these air vents when fully loaded, thereby providing a safe and comfortable passage space for the crew, reducing cargo damage, and reducing the workload of tank cleaning in the port, thereby saving time in the port and reducing the cost of using the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0019] Figure 2 It is an exploded view of a preferred embodiment of the present invention.

[0020] Figure 3 It is a three-dimensional schematic diagram of a rear view angle of a preferred embodiment of the present invention.

[0021] Figure 4 This is an exploded view of a preferred embodiment of the present invention from a rearward perspective.

[0022] Figure 5 Schematic diagram of the internal structure of a preferred embodiment of the present invention.

[0023] Figure 6 for Figure 5 A-direction view.

[0024] Figure 7 for Figure 6 BB cross-sectional view.

[0025] Figure 8 This is a schematic diagram of the state of a preferred embodiment of the present invention after the first and second separation valve plates are pressed by bulk cargo. DETAILED DESCRIPTION

[0026] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a ventilating device for the top pier side plate of a bulk carrier includes a shell 10, both ends of which are open; a sealing plate 11 is fixedly provided at the rear end of the shell 10, and a first ventilating through hole 21 is opened on the sealing plate 11. The first ventilating through hole is circular. The shell and the sealing plate are both made of metal.

[0028] The upper end surface of the housing 10 is provided with a second ventilation hole 22. The second ventilation hole is rectangular. The upper end surface of the housing 10 is an inclined surface extending obliquely downward from the rear end of the housing to the front end of the housing.

[0029] The inner wall of the upper end surface of the housing 10 is fixedly provided with a first blocking block 31 and a second blocking block 32. In this embodiment, the first blocking block 31 and the second blocking block 32 are both in strip shape.

[0030] The first blocking block 31 is disposed in front of the second air permeable hole 22 , and the second blocking block 32 is disposed on the inner wall of the shell between the second air permeable hole 22 and the sealing plate 11 .

[0031] A first partition valve plate 41 movable between the first blocking block and the second blocking block and a second partition valve plate 42 located inside the first partition valve plate are disposed in the housing 10. The first partition valve plate and the second partition valve plate form a sealing component that seals the inner cavity of the housing.

[0032] The top of the first separation valve plate 41 abuts against the inner wall of the upper end surface of the housing between the first blocking block 31 and the second blocking block 32 .

[0033] The bottom of the second partition valve plate 42 abuts against the inner wall of the lower end surface of the housing; the bottom of the second partition valve plate 42 and the housing are connected via a torsion spring 12 .

[0034] A wedge-shaped groove 13 is formed on the inner side of the first separation valve plate 41 , and a connecting rod 14 is disposed in the wedge-shaped groove 13 ; a wedge-shaped block 15 is formed on the outer side of the second separation valve plate 42 , and the wedge-shaped block 15 is slidably disposed in the wedge-shaped groove 13 .

[0035] The connecting rod 14 is located above the wedge block 15 ; a compression spring 16 is provided between the connecting rod 14 and the wedge block 15 . The upper end of the compression spring 16 is fixed to the connecting rod 14 ; the lower end of the compression spring 16 abuts against the top of the wedge block 15 .

[0036] The wedge block is slidably arranged in the wedge groove, so that the first partition valve plate and the second partition valve plate are connected as a whole, and the first partition valve plate can move up and down along the outer side surface of the second partition valve plate.

[0037] Under the action of the compression spring, the top of the first separation valve plate abuts against the inner wall of the upper end surface of the shell; the bottom of the second separation valve plate abuts against the inner wall of the lower end surface of the shell.

[0038] The second partition valve plate can rotate around the torsion spring. When the first partition valve plate and the second partition valve plate are subjected to external pressure, the first partition valve plate moves toward the second blocking block. When the external pressure disappears, under the action of the torsion spring, the second partition valve plate rotates around the torsion spring, so that the first partition valve plate moves toward the first blocking block.

[0039] The cover plate 11 is provided with bolt holes 24 for bolt connection with the top pier side plate 20. The top pier side plate 20 is provided with a third ventilation hole 23 and a clevis screw hole 51, and the cover plate and the top pier side plate are connected by clevis screws 50. The first ventilation hole 21 of the cover plate is connected to the third ventilation hole 23 of the top pier side plate.

[0040] The bulk carrier top pier side plate ventilation device of the present invention has several working states.

[0041] The first state, such as Figure 5 The figure shows the state after installation. At this time, the cargo hold area is not full of cargo. The ventilation equipment of the top pier side plate of the bulk carrier is connected to the top pier empty tank.

[0042] The upper end surface of the shell is an inclined surface, and the second air-permeable through hole faces upward. Under the action of the torsion spring and the compression spring, the first separation valve plate abuts against the first blocking block. The air in the cargo hold can enter the shell through the second air-permeable through hole, and enter the top pier empty compartment through the first air-permeable through hole of the sealing plate, thereby realizing the connection function.

[0043] The second state, such as Figure 8 As shown, the state of the bulk cargo pressing the first and second partition valve plates after the cargo hold area is filled with bulk cargo. Under the pressure of the bulk cargo 60, the first and second partition valve plates rotate around the torsion spring, and the top of the first partition valve plate moves toward the direction of the second blocking block. The wedge block slides in the wedge groove, and the compression spring is compressed. When the top of the first partition valve plate moves to the position of the second blocking block, the first and second partition valve plates stop moving. At this time, the bulk cargo fills the shell on the left side of the first and second partition valve plates, and the right side space of the first and second partition valve plates (i.e., the top pier empty compartment) is isolated from the cargo hold, and the cargo in the cargo hold cannot enter the top pier empty compartment, and the gas in the top pier empty compartment cannot enter the cargo hold. Because the cargo hold area is rarely completely filled with cargo, and when it is full of cargo, there is not enough air in the cargo hold, so there is no need for gas exchange between the empty compartment and the cargo hold.

[0044] When the height of the cargo in the cargo hold is lower than the ventilation device, the remaining cargo in the shell is unloaded under the action of gravity and the torsion spring. Figure 5 The state shown realizes the connection between the air in the cargo hold and the top pier empty compartment.

[0045] The present invention solves the problem of harmful gas accumulation in the top pier empty compartment caused by the lack of water holes in the top pier side plates in the traditional design, which leads to casualties, and also avoids the problems of cargo accumulation, inconvenience in empty compartment passage, and increased ship use costs due to the addition of water holes. In addition, since the present invention uses horn screws to connect to the hull, no welding or other operations are required, it is very convenient to add not only to new ships but also to existing ships in operation, with minimal additional costs, while avoiding cargo damage, reducing the time for tank cleaning in port, and avoiding casualties.

[0046] The present invention can prevent cargo from entering the top pier empty compartment while ensuring the cargo hold and the top pier empty compartment are connected, thereby avoiding the many dangers of harmful gas accumulation in the empty compartment when no hole is opened, and avoiding the danger of tank washing and foot slipping caused by cargo accumulation in the empty compartment when the hole is opened.

[0047] The present invention can ensure that harmful gases accumulated in the empty hold of the top pier can enter the cargo hold and be discharged through the rows of air vents added on the side plates of the top pier, and can also prevent cargo from entering the empty hold of the top pier through these air vents when the ship is fully loaded, thereby providing a safe and comfortable passage space for the crew, reducing cargo damage, and reducing the workload of tank cleaning in the port, thereby saving time in the port and reducing the cost of using the ship.

[0048] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A bulk carrier top pier side plate ventilation device, comprising a shell, characterized in that: Both ends of the shell are open; a sealing plate is fixedly provided at the rear end of the shell, and a first air permeable hole is opened on the sealing plate; a second air permeable hole is opened on the upper end surface of the shell; a first blocking block and a second blocking block are fixedly provided on the inner wall of the upper end surface of the shell; the first blocking block is arranged in front of the second air permeable hole, and the second blocking block is arranged on the inner wall of the shell between the second air permeable hole and the sealing plate; a first dividing valve sheet movable between the first blocking block and the second blocking block and a second dividing valve sheet located on the inner side of the first dividing valve sheet are arranged in the shell; the top of the first dividing valve sheet abuts between the first blocking block and the second blocking block The inner wall of the upper end face of the shell between the first and second dividing valve pieces; the bottom of the second dividing valve piece abuts against the inner wall of the lower end face of the shell; the bottom of the second dividing valve piece and the shell are connected by a torsion spring; a wedge-shaped groove is provided on the inner side face of the first dividing valve piece, and a connecting rod is provided in the wedge-shaped groove; a wedge-shaped block is provided on the outer side face of the second dividing valve piece, and the wedge-shaped block is slidably arranged in the wedge-shaped groove; the connecting rod is located above the wedge-shaped block; a compression spring is provided between the connecting rod and the wedge block; the upper end face of the shell is an inclined surface extending obliquely downward from the rear end of the shell to the front end of the shell; the first dividing valve piece and the second dividing valve piece form a closing component that seals the inner cavity of the shell.

2. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The upper end of the compression spring is fixed to the connecting rod; the lower end of the compression spring abuts against the top of the wedge block.

3. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The first blocking block is in a strip shape.

4. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The second blocking block is in a strip shape.

5. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The first ventilation hole is circular.

6. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The second ventilation hole is rectangular.

7. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The cover plate is provided with bolt holes for bolt connection with the top pier side plates.

8. The bulk carrier top pier side plate ventilation equipment according to claim 1, characterized in that: The shell and the sealing plate are both made of metal.

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