Spraying system for bulkhead of cargo hold

Abstract

The utility model discloses a cargo hold wall spraying system which comprises a cargo hold spraying pump and a spraying header pipe connected to the cargo hold spraying pump. Transverse bulkheads are arranged in the cargo hold and comprise watertight transverse bulkheads arranged at the two ends of the cargo hold and a supporting transverse bulkhead arranged in the middle of the cargo hold. A hatch coaming is arranged at the top of the transverse bulkhead; the spraying header pipe is connected with a spraying branch header pipe leading to the hatch coaming; a spraying branch pipe connected to the spraying main pipe is arranged in the hatch coaming; the spraying branch pipe in the hatch coaming is connected with a nozzle capable of spraying towards the outer side of the transverse bulkhead; the nozzles extend to the outer sides of the transverse bulkheads, and each transverse bulkhead is provided with a plurality of nozzles. According to the utility model, the cabin wall is covered by the water curtain, so that the purposes of cooling, isolating heat transfer and preventing fire spreading are achieved; and the spraying requirement of the fire-fighting symbol of the Norway classification society is met.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a cargo hold bulkhead spraying system. Background Art

[0002] According to the specification, in order to prevent heat from being transferred through cargo hold hatch covers, cargo hold boundaries and other structural parts, reduce the risk of fire spread, and prevent the fire from spreading to adjacent cargo holds through boundaries, it is necessary to cool the designated bulkheads of the cargo hold. This requirement is based on the requirements for the installation of a cooling system in the new enhanced fire protection notation FCS (FF) proposed by the Norwegian Classification Society (DNVGL) in 2021.

[0003] Currently, there are no operating ships or products that meet the cargo hold bulkhead spraying requirements of the FCS (FF) of the Norwegian Classification Society (DNV GL). Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a cargo hold bulkhead spray system.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A cargo hold bulkhead spraying system comprises a cargo hold spraying pump and a spraying main pipe connected to the cargo hold spraying pump; a transverse bulkhead is arranged in the cargo hold, and the transverse bulkhead comprises watertight transverse bulkheads arranged at both ends of the cargo hold and a supporting transverse bulkhead arranged in the middle of the cargo hold; a hatch coaming is arranged on the top of the transverse bulkhead; the spraying main pipe is connected to a spraying branch main pipe leading to the hatch coaming; a spraying branch pipe connected to the spraying branch main pipe is arranged in the hatch coaming; the spraying branch pipe in the hatch coaming is connected to a nozzle capable of spraying toward the outside of the transverse bulkhead; the nozzle extends to the outside of the transverse bulkhead, and a plurality of nozzles are arranged on each transverse bulkhead.

[0007] Furthermore, the nozzles on the same transverse bulkhead are connected to the same spray branch pipe, and the nozzles on different transverse bulkheads are respectively connected to different spray branch pipes.

[0008] Further, the supporting transverse bulkhead comprises a supporting transverse bulkhead located at the front side and a supporting transverse bulkhead located at the rear side; the spray branch pipe connected to the nozzle on the watertight transverse bulkhead located at the front side and the spray branch pipe connected to the nozzle on the supporting transverse bulkhead located at the front side are connected to one spray branch main pipe, and the spray branch pipe connected to the nozzle on the watertight transverse bulkhead located at the rear side and the spray branch pipe connected to the nozzle on the supporting transverse bulkhead located at the rear side are connected to another spray branch main pipe.

[0009] Furthermore, a remote control valve is provided on the sprinkler branch main pipe.

[0010] Furthermore, the nozzles on each transverse bulkhead are distributed side by side and transversely along the transverse bulkhead.

[0011] Furthermore, the main sprinkler pipe is arranged in a side channel below the main deck.

[0012] Furthermore, main sprinkler pipes are provided in the side channels on both sides of the cargo hold.

[0013] Furthermore, the hatch coaming is formed by a hatch coaming top, a main deck and a transverse bulkhead, wherein the hatch coaming top is located above the main deck; and the sprinkler branch pipe is arranged between the main deck and the hatch coaming top.

[0014] Furthermore, the nozzle is arranged below the hatch coaming.

[0015] Furthermore, the suction port of the cargo hold spray pump is connected to the seawater main.

[0016] The beneficial effects of the utility model are: the utility model can achieve a good spraying effect on the cargo hold bulkhead, realize water curtain covering the bulkhead, thereby achieving cooling, isolating heat transfer, and preventing the spread of fire; it is easy to operate and has low manufacturing cost. The utility model meets the spraying requirements of the cargo hold watertight transverse bulkhead and supporting bulkhead mentioned in the FCS (FF) fire protection symbol of the Norwegian Classification Society. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.

[0018] Figure 2 This is a schematic diagram of the distribution of spray pipes in the cargo hold of a preferred embodiment of the utility model.

[0019] Figure 3 for Figure 2 Schematic diagram of the BB section.

[0020] Figure 4 for Figure 3 Center C view.

[0021] Figure 5 This is a schematic diagram of a preferred embodiment of the utility model when loading containers in a cargo hold. DETAILED DESCRIPTION

[0022] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a cargo hold bulkhead spray system comprises a cargo hold spray pump 11 and a spray main pipe 15 connected to the cargo hold spray pump; the suction port of the cargo hold spray pump 11 is connected to the seawater main pipe (not shown in the figure).

[0024] Transverse bulkheads are arranged in the cargo hold 10, and the transverse bulkheads include watertight transverse bulkheads 22 arranged at both ends of the cargo hold and a supporting transverse bulkhead 21 arranged in the middle of the cargo hold. The watertight transverse bulkheads include a watertight transverse bulkhead located at the front side and a watertight transverse bulkhead located at the rear side. The supporting transverse bulkheads include a supporting transverse bulkhead located at the front side and a supporting transverse bulkhead located at the rear side. The supporting transverse bulkheads divide the cargo hold into a front part and a rear part of the cargo hold. The front part of the cargo hold is formed between the watertight transverse bulkhead located at the front side and the supporting transverse bulkhead located at the front side, and the rear part of the cargo hold is formed between the watertight transverse bulkhead located at the rear side and the supporting transverse bulkhead located at the rear side.

[0025] A hatch coaming 30 is provided at the top of the transverse bulkhead, that is, a hatch coaming 30 is provided at the top of both the watertight transverse bulkhead 22 and the supporting transverse bulkhead 21 .

[0026] The spray main pipe 15 is connected to a spray branch main pipe 16 leading to the hatch coaming; a spray branch pipe 17 connected to the spray branch main pipe 16 is arranged inside the hatch coaming 30; the spray branch pipe 17 inside the hatch coaming is connected to a nozzle 18 capable of spraying toward the outside of the transverse bulkhead.

[0027] The nozzles extend to the outside of the transverse bulkheads, and each transverse bulkhead is provided with a plurality of nozzles. The nozzles 18 on each transverse bulkhead are distributed side by side transversely along the transverse bulkhead.

[0028] The nozzles on the same transverse bulkhead are connected to the same spray branch pipe, and the nozzles on different transverse bulkheads are connected to different spray branch pipes.

[0029] The spray branch pipes connected to the nozzles on the front watertight transverse bulkhead and the spray branch pipes connected to the nozzles on the front supporting transverse bulkhead are connected to one spray branch main pipe, and the spray branch pipes connected to the nozzles on the rear watertight transverse bulkhead and the spray branch pipes connected to the nozzles on the rear supporting transverse bulkhead are connected to another spray branch main pipe.

[0030] A remote control valve 14 is provided on the spray branch main pipe 16 .

[0031] Each cargo hold is sprayed with four transverse bulkheads in total. Each cargo hold is grouped. The spray branch pipes of the first two transverse bulkheads share a remote control valve, and the spray branch pipes of the rear two transverse bulkheads share a remote control valve.

[0032] The spray main pipe 15 is arranged in the side channel 35 below the main deck 33. The spray main pipe 15 is arranged in the side channels on both sides of the cargo hold 10.

[0033] The hatch coaming 30 is formed by a hatch coaming top 34 , a main deck 33 and a transverse bulkhead, and the hatch coaming top 34 is located above the main deck 33 .

[0034] The hatch coaming at the top of the supporting transverse bulkhead is surrounded by the hatch coaming top 34, the main deck 33 and the supporting transverse bulkhead 21; the hatch coaming at the top of the watertight transverse bulkhead is surrounded by the hatch coaming top 34, the main deck 33 and the watertight transverse bulkhead.

[0035] The spray branch pipe 17 is arranged between the main deck and the hatch coaming. The nozzle 18 is arranged below the hatch coaming 34.

[0036] like Figure 5 As shown, the nozzle 18 can spray the area between the supporting transverse bulkhead 21 and the container 40. A spray protection area 41 is formed between the container and the transverse bulkhead.

[0037] Figure 1 The ellipsis in the figure indicates that there are multiple cargo holds; Figure 2 The ellipsis in the indicates that there are multiple nozzles; Figure 5 The ellipsis in the figure indicates that there are multiple containers. Figure 1 and Figure 2 In the figure, solid lines represent pipelines and dotted lines represent various components of the hull structure.

[0038] The operation process of this system is as follows: the cargo hold spray pump 11 transfers the seawater from the seawater main pipe into the spray main pipe 15 through the check valve 12 and the remote control valve 13; the seawater in the spray main pipe enters the spray branch main pipe 16 through the remote control valve 14; the seawater in the spray branch main pipe 16 enters each spray branch pipe 17 respectively; the seawater in the spray branch pipe 17 sprays the inside of the cargo hold through the nozzle 18.

[0039] The utility model arranges a fixed spray pipeline and a nozzle on the top of the hatch coaming to spray downwards and form a water curtain on the target cabin wall to achieve a cooling effect.

[0040] The total flow of water from the nozzles and pipes of each cargo hold is to meet the total cooling water required for all transverse bulkheads of each cargo hold, which can be calculated according to the rules. The cargo hold spray pump is to meet the total cooling water required for all transverse bulkheads of the largest cargo hold. The configuration and operation of this system only considers the simultaneous operation of the nozzles of one cargo hold.

[0041] The utility model can achieve a good spraying effect on the cargo hold bulkhead, and realize that the water curtain covers the bulkhead, thereby achieving cooling, isolating heat transfer, and preventing the spread of fire; it is easy to operate and has a low manufacturing cost.

[0042] According to the FCS (FF) requirements of the Norwegian Classification Society (DNVGL), it is necessary to spray not only the two watertight transverse bulkheads at the front and rear of the cargo hold, but also the supporting transverse bulkhead in the middle of the cargo hold. The utility model meets the spraying requirements of the watertight transverse bulkheads and supporting bulkheads of the cargo hold mentioned in the FCS (FF) fire protection symbols of the Norwegian Classification Society.

[0043] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A cargo hold bulkhead spray system, comprising a cargo hold spray pump and a spray main pipe connected to the cargo hold spray pump; a transverse bulkhead is arranged in the cargo hold, the transverse bulkhead comprises a watertight transverse bulkhead arranged at both ends of the cargo hold and a supporting transverse bulkhead arranged in the middle of the cargo hold; a hatch coaming is arranged on the top of the transverse bulkhead; and the characteristics are as follows: The spray main pipe is connected to a spray branch main pipe leading to the hatch coaming; a spray branch pipe connected to the spray branch main pipe is arranged inside the hatch coaming; the spray branch pipe inside the hatch coaming is connected to a nozzle capable of spraying toward the outside of the transverse bulkhead; the nozzle extends to the outside of the transverse bulkhead, and each transverse bulkhead is provided with a plurality of nozzles.

2. The cargo hold bulkhead spray system according to claim 1, characterized in that: The nozzles on the same transverse bulkhead are connected to the same spray branch pipe, and the nozzles on different transverse bulkheads are connected to different spray branch pipes.

3. The cargo hold bulkhead spray system according to claim 2, characterized in that: The supporting transverse bulkhead comprises a supporting transverse bulkhead located at the front side and a supporting transverse bulkhead located at the rear side; the spray branch pipes connected to the nozzles on the watertight transverse bulkhead located at the front side and the spray branch pipes connected to the nozzles on the supporting transverse bulkhead located at the front side are connected to one spray branch main pipe, and the spray branch pipes connected to the nozzles on the watertight transverse bulkhead located at the rear side and the spray branch pipes connected to the nozzles on the supporting transverse bulkhead located at the rear side are connected to another spray branch main pipe.

4. The cargo hold bulkhead spray system according to claim 3, characterized in that: A remote control valve is provided on the sprinkler branch main pipe.

5. The cargo hold bulkhead spray system according to claim 1, characterized in that: The nozzles on each transverse bulkhead are arranged side by side and laterally along the transverse bulkhead.

6. The cargo hold bulkhead spray system according to claim 1, characterized in that: The main sprinkler pipe is located in the side channel below the main deck.

7. The cargo hold bulkhead spray system according to claim 6, characterized in that: There are main sprinkler pipes in the side channels on both sides of the cargo hold.

8. The cargo hold bulkhead spray system according to claim 1, characterized in that: The hatch coaming is composed of the hatch coaming top, the main deck and the transverse bulkhead. The hatch coaming top is located above the main deck; the sprinkler branch pipe is arranged between the main deck and the hatch coaming top.

9. The cargo hold bulkhead spray system according to claim 8, characterized in that: The nozzle is located below the hatch coaming.

10. The cargo hold bulkhead spray system according to claim 1, characterized in that: The suction port of the cargo hold spray pump is connected to the seawater main.

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