Fresh water pipeline structure and transfer method at the bow and stern of ships

Abstract

The invention discloses a fresh water pipeline structure and a method for adjusting and recharging at the bow and stern of a ship. The bow living area of ​​the ship is provided with a living area fresh water tank, a living fresh water pressure cabinet, a first living fresh water pump, a second living fresh water pump, a first water outlet pipe, a first water recharging pipe, and a second water recharging pipe; the engine room of the ship is provided with an engine room fresh water tank, a technical water pressure cabinet, a first technical water pump, a second technical water pump, a second water outlet pipe, a third water recharging pipe, and a fourth water recharging pipe; the first water outlet pipe is provided with a first valve; the second water recharging pipe is provided with a second valve; the second water outlet pipe is provided with a third valve; the fourth water recharging pipe is provided with a fourth valve; the second water recharging pipe, the first water recharging pipe, the fourth water recharging pipe, and the third water recharging pipe are all connected to a water recharging main pipe. The invention does not require additional equipment, saves costs, is convenient for pipeline modification, is simple to modify the control mode, and is convenient for personnel to operate.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a fresh water pipeline structure at the bow and stern of a ship and a method for adjusting and transferring fresh water. Background Art

[0002] For ships built on the bow, the daily living quarters of the crew are located at the bow. Fresh water tanks and daily fresh water tanks are set up at the bow to provide living water for each living cabin (including drinking water, kitchen water, sanitary bathing water, deck miscellaneous fresh water, etc.). At the same time, in the engine room at the stern of the ship, distilled water tanks and technical water tanks are set up to provide working water for the main equipment on board (such as fresh water cooling water, working fresh water, etc.). There is also a fresh water generator in the engine room, which can be used to replenish the distilled water tank. Considering the water shortage or emergency situation that may occur in the actual operation of the ship, and the fresh water tanks at the bow and stern of the ship are usually more than 100 meters away, it is necessary to have a fresh water transfer system and pipelines to facilitate the allocation of fresh water resources on board. For example, when the bow is short of water, the fresh water produced by the fresh water generator can be transported to the fresh water tank at the bow, or when the technical water at the stern is insufficient (for example, when the fresh water generator fails), part of the fresh water at the bow can be transferred to the engine room to provide the normal operation of important propulsion equipment.

[0003] The conventional transfer scheme is to set up an independent fresh water main between the bow and stern of the ship and add a fresh water transfer pump for transfer between fresh water tanks. Since fresh water pumps are generally small centrifugal pumps with poor suction performance, a transfer pump should generally be installed at the bow and stern. The system is relatively complex, and additional loading equipment and costs are increased. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art and provide a fresh water pipeline structure and a transfer method for the bow and stern of a ship.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A fresh water pipeline structure at the bow and stern of a ship is suitable for a ship with a superstructure arranged at the bow of the ship; a living area fresh water tank and a fresh water pressure cabinet are arranged in the bow living area of ​​the ship; a first fresh water pump and a second fresh water pump are arranged between the fresh water tank and the fresh water pressure cabinet; the first fresh water pump and the second fresh water pump are arranged in parallel; the second fresh water pump is connected to the fresh water pressure cabinet through a first outlet pipe; an engine room fresh water tank and a technical water pressure cabinet are arranged in the engine room of the ship; a first technical water pump and a second technical water pump are arranged between the engine room fresh water tank and the technical water pressure cabinet; the first technical water pump and the second technical water pump are arranged in parallel; the second technical water pump is connected to the fresh water pressure cabinet through a second outlet pipe The water outlet pipe is connected to the technical water pressure cabinet; the first water pipe is connected to the fresh water tank in the living area; the third water pipe is connected to the fresh water tank in the engine room; the first water pipe and the third water pipe are connected through a water main pipe; it is characterized in that a first valve is provided on the first water outlet pipe; a second water pipe is connected to the pipeline between the first valve and the second living fresh water pump, and a second valve is provided on the second water pipe; a third valve is provided on the second water outlet pipe; a fourth water pipe is provided on the pipeline between the third valve and the second technical water pump; a fourth valve is provided on the fourth water pipe; the second water pipe and the first water pipe are simultaneously connected to one end of the water main pipe; the fourth water pipe and the third water pipe are simultaneously connected to the other end of the water main pipe.

[0007] A method for transferring fresh water from the bow and stern of a ship, which adopts the above-mentioned fresh water pipeline structure at the bow and stern of the ship, and comprises:

[0008] Step 1: When it is necessary to transfer fresh water from the bow living area to the engine room, execute this step: change the first fresh water pump and the second fresh water pump to the manual switching mode, close the first valve, open the second valve, and manually operate the second fresh water pump to transfer fresh water from the fresh water tank in the living area to the fresh water tank in the engine room;

[0009] Step 2. When it is necessary to transfer the fresh water in the engine room to the bow living area, execute this step: change the first technical water pump and the second technical water pump to manual switching mode, close the third valve, open the fourth valve, manually operate the second technical water pump, and transfer fresh water from the engine room fresh water tank to the living area fresh water tank.

[0010] In step 1, the path for conveying fresh water from the living area fresh water tank to the engine room fresh water tank is: the second living fresh water pump first transfers the fresh water from the living area fresh water tank to the second water transfer pipe; the fresh water passes through the second water transfer pipe, the water transfer main pipe, and the third water transfer pipe in sequence before entering the engine room fresh water tank.

[0011] When the second domestic fresh water pump transfers fresh water from the living area fresh water tank to the engine room fresh water tank, the first domestic fresh water pump operates normally to transfer fresh water from the living area fresh water tank to the domestic fresh water pressure cabinet.

[0012] If the first domestic fresh water pump fails, the second domestic fresh water pump stops transferring fresh water from the living area fresh water tank to the engine room fresh water tank, opens the first valve and closes the second valve, and the second domestic fresh water pump transfers the fresh water from the living area fresh water tank to the domestic fresh water pressure cabinet.

[0013] After the fault of the first domestic fresh water pump is eliminated, execute step 1, and the second domestic fresh water pump continues to transport fresh water.

[0014] In step 2, the path for transporting fresh water from the engine room fresh water tank to the living area fresh water tank is: the second technical water pump first transfers the fresh water from the engine room fresh water tank to the fourth water transfer pipe; the fresh water passes through the fourth water transfer pipe, the water transfer main pipe, and the first water transfer pipe in turn and then enters the living area fresh water tank.

[0015] When the second technical water pump transfers fresh water from the engine room fresh water tank to the living area fresh water tank, the first technical water pump operates normally to transfer the fresh water in the engine room fresh water tank to the technical water pressure cabinet.

[0016] If the first technical water pump fails, the second technical water pump stops transferring fresh water from the engine room fresh water tank to the living area fresh water tank, opens the third valve and closes the fourth valve, and the second technical water pump transfers the fresh water from the engine room fresh water tank to the technical water pressure cabinet.

[0017] After the fault of the first technical water pump is eliminated, execute step 2, and the second technical water pump continues to carry out the fresh water transfer work.

[0018] The beneficial effects of the present invention are as follows: the technical solution of the present invention adjusts the pipeline on the basis of the existing equipment, and there is no need to add new transfer equipment, that is, there is no need to add additional fresh water transfer pumps, and the number of valves required is also less than the conventional solution. When the fresh water in the engine room and the fresh water in the bow living area need to be transferred to each other, the technical solution of the present invention can use the existing equipment to complete the transfer of fresh water in the engine room and the fresh water in the bow living area. The technical solution of the present invention utilizes the redundancy of existing equipment on board, and does not require additional equipment. Through the reasonable transformation of the pipeline and the adjustment of the control method, the functional requirements of the ship's fresh water transfer are completed; moreover, it does not affect the normal use of the main function. The present invention has the following advantages: no additional equipment is required, saving costs; convenient pipeline transformation; simple control mode modification, and convenient personnel operation. The present invention is a simpler, energy-saving and effective solution for fresh water transfer between the bow and stern of a ship, which can optimize system resources and facilitate daily operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0020] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0021] like Figure 1 As shown, a fresh water pipeline structure at the bow and stern of a ship is suitable for a ship with a superstructure arranged at the bow.

[0022] A living area fresh water tank 13 and a living fresh water pressure tank 14 are provided in the bow living area 10 of the ship; a first living fresh water pump 11 and a second living fresh water pump 12 are provided between the living area fresh water tank 13 and the living fresh water pressure tank 14; the first living fresh water pump 11 and the second living fresh water pump 12 are arranged in parallel; the second living fresh water pump 12 is connected to the living fresh water pressure tank 14 through a first water outlet pipe 21.

[0023] The ship's engine room 30 is provided with an engine room fresh water tank 33 and a technical water pressure cabinet 34; a first technical water pump 31 and a second technical water pump 32 are provided between the engine room fresh water tank 33 and the technical water pressure cabinet 34; the first technical water pump 31 and the second technical water pump 32 are arranged in parallel; the second technical water pump 32 is connected to the technical water pressure cabinet 34 via a second water outlet pipe 22.

[0024] The living area fresh water tank 13 is connected to a first water pipe 41 ; the engine room fresh water tank 33 is connected to a third water pipe 43 ; the first water pipe 41 and the third water pipe 43 are connected via a main water pipe 40 .

[0025] The first water outlet pipe 21 is provided with a first valve 51 ; the pipeline between the first valve 51 and the second fresh water pump 12 is connected with a second water transfer pipe 42 , and the second water transfer pipe 42 is provided with a second valve 52 .

[0026] A third valve 53 is disposed on the second water outlet pipe 22 ; a fourth water transfer pipe 44 is disposed on the pipeline between the third valve 53 and the second technical water pump 32 ; and a fourth valve 54 is disposed on the fourth water transfer pipe 44 .

[0027] The second water supply pipe 42 and the first water supply pipe 41 are connected to one end of the water supply main pipe 40 at the same time; the fourth water supply pipe 44 and the third water supply pipe 43 are connected to the other end of the water supply main pipe 40 at the same time.

[0028] A method for transferring fresh water from the bow and stern of a ship adopts the aforementioned fresh water pipeline structure at the bow and stern of the ship, and comprises: step 1 of transferring fresh water from the bow living area to the engine room; step 2 of transferring fresh water in the engine room to the bow living area. When executing step 1, step 2 does not need to be executed. When executing step 2, step 1 does not need to be executed.

[0029] Step 1, when it is necessary to transfer fresh water from the bow living area to the engine room, execute this step: change the first fresh water pump 11 and the second fresh water pump 12 to manual switching mode, close the first valve 51, open the second valve 52, manually operate the second fresh water pump 12, and transport fresh water from the living area fresh water tank 13 to the engine room fresh water tank 33.

[0030] The path for transporting fresh water from the living area fresh water tank 13 to the cabin fresh water tank 33 is as follows: the second living fresh water pump 12 first transfers the fresh water from the living area fresh water tank 13 to the second water transfer pipe 42; the fresh water passes through the second water transfer pipe 42, the water transfer main pipe 40, and the third water transfer pipe 43 in sequence before entering the cabin fresh water tank 33.

[0031] When the second domestic fresh water pump transfers fresh water from the living area fresh water tank to the engine room fresh water tank, the first domestic fresh water pump operates normally to transfer fresh water from the living area fresh water tank to the domestic fresh water pressure tank.

[0032] If the first domestic fresh water pump fails, the second domestic fresh water pump stops transferring fresh water from the living area fresh water tank to the engine room fresh water tank, opens the first valve and closes the second valve, and the second domestic fresh water pump transfers the fresh water from the living area fresh water tank to the domestic fresh water pressure cabinet.

[0033] After the fault of the first domestic fresh water pump is eliminated, execute step 1, and the second domestic fresh water pump continues to transport fresh water.

[0034] Step 2, when it is necessary to transfer the fresh water in the engine room to the bow living area, execute this step: change the first technical water pump 31 and the second technical water pump 32 to the manual switching mode, close the third valve 53, open the fourth valve 54, manually operate the second technical water pump 32, and transport the fresh water from the engine room fresh water tank 33 to the living area fresh water tank 13.

[0035] In step 2, the path for conveying fresh water from the engine room fresh water tank to the living area fresh water tank is: the second technical water pump 32 first transfers the fresh water from the engine room fresh water tank 33 to the fourth water transfer pipe 44; the fresh water passes through the fourth water transfer pipe 44, the water transfer main pipe 40, and the first water transfer pipe 41 in sequence before entering the living area fresh water tank 13.

[0036] When the second technical water pump transfers fresh water from the engine room fresh water tank to the living area fresh water tank, the first technical water pump operates normally to transfer the fresh water in the engine room fresh water tank to the technical water pressure cabinet.

[0037] If the first technical water pump fails, the second technical water pump stops transferring fresh water from the engine room fresh water tank to the living area fresh water tank, opens the third valve and closes the fourth valve, and the second technical water pump transfers the fresh water from the engine room fresh water tank to the technical water pressure cabinet.

[0038] After the fault of the first technical water pump is eliminated, execute step 2, and the second technical water pump continues to carry out the fresh water transfer work.

[0039] Since two water pumps in the same cabin area can theoretically work simultaneously, the diameter of the pipe from the fresh water tank to the water pump suction section can be enlarged by one level, for example, from DN40 to DN50, to better meet the system working requirements.

[0040] The present invention is applicable to ships with a superstructure at the bow. The daily fresh water system already equipped on board, whether in the engine room area or the bow living area, each area has a fresh water tank, two fresh water pumps and a fresh water pressure cabinet; the fresh water pressure cabinet serves as a buffer container for continuously and stably supplying water to users on board, and the fresh water pump serves as a tool for the fresh water tank to automatically replenish the capacity from the fresh water tank; two fresh water pumps are generally provided, which can realize automatic switching and standby to ensure the continuous and stable operation of the fresh water system.

[0041] The use of water in the engine room and the bow living area are two relatively independent functions on board. However, under special circumstances, the transfer of fresh water between the two areas is an indispensable function. For example, when the living area is short of water, the fresh water produced by the fresh water generator 60 in the engine room is urgently needed, which can be replenished in the living area to ensure the safety of the crew. For example, when the fresh water generator 60 fails and cannot produce fresh water, the fresh water used by the equipment in the engine room is in urgent need. In order to maintain the fresh water consumption required for the propulsion of the ship, it is also necessary to transfer fresh water from the bow of the ship for emergency. The technical solution of the present invention can smoothly complete the transfer of fresh water in the engine room and fresh water in the bow living area.

[0042] The technical solution of the present invention adjusts the pipeline on the basis of the existing equipment, and there is no need to add new transfer equipment, that is, there is no need to add additional fresh water transfer pumps, and the number of valves required is also less than that of conventional solutions. When the fresh water in the engine room and the fresh water in the forward living area need to be transferred to each other, the technical solution of the present invention can use the existing equipment to complete the transfer of fresh water in the engine room and the fresh water in the forward living area.

[0043] The technical solution of the present invention utilizes the redundancy of existing equipment on board, does not require additional equipment, and completes the functional requirements of fresh water transfer on board through reasonable transformation of pipelines and adjustment of control methods; moreover, it does not affect the normal use of the main functions.

[0044] The invention has the following advantages: no need to add additional equipment, saving costs; convenient pipeline modification; simple control mode modification, convenient personnel operation. The invention is a simpler, energy-saving and effective solution for transferring fresh water between the bow and stern of a ship, which can optimize system resources and facilitate daily operation and maintenance.

[0045] 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 fresh water pipeline structure at the bow and stern of a ship, which is suitable for a ship with a superstructure arranged at the bow of the ship; a living area fresh water tank and a fresh water pressure tank for living are arranged in the bow living area of ​​the ship; a first fresh water pump for living and a second fresh water pump for living are arranged between the fresh water tank for living and the fresh water pressure tank for living; the first fresh water pump and the second fresh water pump for living are arranged in parallel; the second fresh water pump for living are connected to the fresh water pressure tank for living through a first water outlet pipe; an engine room fresh water tank and a technical water pressure tank are arranged in the engine room of the ship; a first technical water pump and a second technical water pump are arranged between the engine room fresh water tank and the technical water pressure tank; the first technical water pump and the second technical water pump are arranged in parallel; the second technical water pump is connected to the technical water pressure tank through a second water outlet pipe; a first barge pipe is connected to the fresh water tank for living; a third barge pipe is connected to the fresh water tank for engine room; the first barge pipe and the third barge pipe are connected through a barge main pipe; it is characterized in that The first water outlet pipe is provided with a first valve; the pipeline between the first valve and the second fresh water pump is connected with a second water pipe, and the second water pipe is provided with a second valve; the second water outlet pipe is provided with a third valve; the pipeline between the third valve and the second technical water pump is provided with a fourth water pipe; the fourth water pipe is provided with a fourth valve; the second water pipe and the first water pipe are simultaneously connected to one end of the water main pipe; the fourth water pipe and the third water pipe are simultaneously connected to the other end of the water main pipe.

2. A method for transferring fresh water from the bow and stern of a ship, which adopts the bow and stern fresh water pipeline structure of the ship as claimed in claim 1, comprising: Step 1: When it is necessary to transfer fresh water from the bow living area to the engine room, execute this step: change the first fresh water pump and the second fresh water pump to the manual switching mode, close the first valve, open the second valve, and manually operate the second fresh water pump to transfer fresh water from the fresh water tank in the living area to the fresh water tank in the engine room; Step 2. When it is necessary to transfer the fresh water in the engine room to the bow living area, execute this step: change the first technical water pump and the second technical water pump to manual switching mode, close the third valve, open the fourth valve, manually operate the second technical water pump, and transfer fresh water from the engine room fresh water tank to the living area fresh water tank.

3. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 2, characterized in that: In step 1, the path for conveying fresh water from the living area fresh water tank to the engine room fresh water tank is: the second living fresh water pump first transfers the fresh water from the living area fresh water tank to the second water transfer pipe; the fresh water passes through the second water transfer pipe, the water transfer main pipe, and the third water transfer pipe in sequence before entering the engine room fresh water tank.

4. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 3, characterized in that: When the second domestic fresh water pump transfers fresh water from the living area fresh water tank to the engine room fresh water tank, the first domestic fresh water pump operates normally to transfer fresh water from the living area fresh water tank to the domestic fresh water pressure tank.

5. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 4, characterized in that: If the first domestic fresh water pump fails, the second domestic fresh water pump stops transferring fresh water from the living area fresh water tank to the engine room fresh water tank, opens the first valve and closes the second valve, and the second domestic fresh water pump transfers the fresh water from the living area fresh water tank to the domestic fresh water pressure cabinet.

6. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 5, characterized in that: After the fault of the first domestic fresh water pump is eliminated, execute step 1, and the second domestic fresh water pump continues to transport fresh water.

7. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 2, characterized in that: In step 2, the path for transporting fresh water from the engine room fresh water tank to the living area fresh water tank is: the second technical water pump first transfers the fresh water from the engine room fresh water tank to the fourth water transfer pipe; the fresh water passes through the fourth water transfer pipe, the water transfer main pipe, and the first water transfer pipe in turn and then enters the living area fresh water tank.

8. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 7, characterized in that: When the second technical water pump transfers fresh water from the engine room fresh water tank to the living area fresh water tank, the first technical water pump operates normally to transfer the fresh water in the engine room fresh water tank to the technical water pressure cabinet.

9. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 8, characterized in that: If the first technical water pump fails, the second technical water pump stops transferring fresh water from the engine room fresh water tank to the living area fresh water tank, opens the third valve and closes the fourth valve, and the second technical water pump transfers the fresh water from the engine room fresh water tank to the technical water pressure cabinet.

10. The method for transferring fresh water from the bow and stern of a ship as claimed in claim 9, characterized in that: After the fault of the first technical water pump is eliminated, execute step 2, and the second technical water pump continues to carry out the fresh water transfer work.

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