JPH0739748Y2 - Structure of the frozen deck inside the deck - Google Patents

Description

[Detailed description of the device]

[Industrial application] The decks of refrigerating ships include decks that have the strength to load cargo and decks that have the strength to load cargo while satisfying the longitudinal strength of the hull. This invention relates to the structure of the grating deck which requires strength in the latter deck.

[Prior art]

Conventionally, on a deck of a refrigerating ship, when cooling and keeping several layers of decks in one refrigeration unit,
A grating deck as shown in FIGS. 4 and 5 was provided. In the structure of the grating deck 34, the frame 31 was welded to the outer plate 30, and the beam 32 was welded to the frame 31. Wooden boards 33 were spread over the beam 32 at regular intervals to form a grating deck 34. Although such a structure has the strength to load cargo, it does not have the continuity of the longitudinal strength of the hull.

[Problems to be Solved by the Invention] As described in the prior art, the frozen barge cannot withstand the strength of the hull only with the deck that is sufficient for loading cargo, and the longitudinal strength of the hull causes the cross-section of the member over the entire length of the hull. A continuous strength deck with a constant coefficient or more is required. In the case of refrigerating barges containing a strength deck in the middle layer for cooling and keeping heat in a single refrigeration unit due to cargo problems, the strength deck could not have the strength required by the conventional grating deck structure. Therefore, in the past, the strength deck has never been a grating deck.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is to weld a frame to an outer plate at regular intervals, weld a beam to the frame, provide a deck with a steel plate attached to the upper part, and at the center of the deck, Ventilation holes are formed at regular intervals, wood boards are laid according to the intervals of the ventilation holes to form a grating deck, and two rows of ventilation holes are provided at the frame side on the port side of the deck, with joists at regular intervals between them. A punching board is attached to the upper part of the joist, a duct is formed along the joist, the upper surface of the punching board communicates with the grating deck, and the punching board is provided with holes at regular intervals, Cold air flows to the port side.

[Action]

By opening air holes in the strength deck, cold air will flow, and in the case of the hull side and front-back direction so-called bulkhead, cold air will pass through the air ducts to the corners through the ducts made of joists. Therefore, uniform cooling and cooling can be performed.

【Example】

Examples will be described with reference to the drawings. 1 and 2, the structure of the frozen barb deck of the present invention will be described. The frame 2 is welded to the outer plate 1 at regular intervals, the beam 3 is welded to the frame 2, and the steel plate is attached to the upper part. And deck 4 is installed. Ventilation holes 5 are opened at regular intervals in the central portion of the deck 4. A wood board 6 is laid in accordance with the intervals of the air holes 5 to form a grating deck 7, and two rows of air holes 8 are provided on the port side of the deck 4 at intervals of the frame 2 and joists 9 are provided at regular intervals therebetween. A punching board 10 is provided on the upper part of the joist 9, and a duct 11 is formed along the joist 9 so as to communicate with the grating deck 7. The punching board 10 is provided with holes 12 at regular intervals so that cold air can flow to the side of the ship. The thickness of the wooden board 6 is equal to the sum of the thickness of the joists and the thickness of the punching board 10, and forms a flat grating deck 7.

[Effect of device]

Since the present invention is configured as described above, it has the following effects. Even with a strong deck, by providing the air holes, cold air circulates through the air holes, and it becomes possible to uniformly cool and keep the grating deck cold.

[Brief description of drawings]

FIG. 1 schematically shows a cross section of the grating deck of the present invention. FIG. 2 is a schematic plan view of the grating deck of the present invention. FIG. 3 schematically shows a cross section of a general grating deck. Figure 4 shows
It is a schematic view of the plane of a general grating deck. Main symbols 1 …… Outer plate 2 …… Frame 3 …… Beam 4 …… Deck 5 …… Wind hole 6 …… Wood board 7 …… Grating deck 8 …… Wind hole 9 …… Joist 10 …… Punching board 11… … Duct 12 …… Hole

Claims (1)

[Scope of utility model registration request] 1. A frame 2 is welded to an outer plate 1 at regular intervals,
A beam 4 is welded to the frame 2 and a deck 4 having a steel plate attached is provided on the upper part. Ventilation holes 5 are opened at regular intervals in the central portion of the deck 4, and wooden boards 6 are laid according to the intervals of the ventilation holes 5. To form a grating deck 7. On the port side of the deck 4, two rows of air holes 8 are provided at intervals of the frame 2 and joists 9 are provided at regular intervals between them, and the punching board 10 is provided above the joists 9. A duct 11 is formed along the joist 9, the upper surface of the punching board 10 communicates with the grating deck 7, and the punching board 10 is provided with holes 12 at regular intervals.
A structure of a frozen deck grating that allows cold air to flow to the port side.