CN108974252A - A kind of ship dry type bilge-water collection system - Google Patents

Abstract

The invention discloses a ship dry type bilge water collection system, a ship dry type bilge water collection system, comprising a plurality of machinery spaces, a plurality of cargo holds, a main engine room, a propulsion engine room and a bilge water tank. A plurality of sewage wells are arranged in the machine space compartment and the cargo compartment, and the plurality of sewage wells are connected through connecting pipelines. Check valves are arranged at the connection between each sewage well and the connecting pipelines. There are daily bilge pumps in the main engine room and bilge pumps in the main engine room; one end of the daily bilge pump in the main engine room communicates with each sewage well through a pipeline, and the other end communicates with the bilge tank through a pipeline; One end of the bilge pump in the main engine room is communicated with each sewage well through a pipeline, and the other end is communicated with the bilge water tank through a pipeline; Pump.

Description

A ship dry bilge water collection system

technical field

The invention relates to the field of ship bilge water treatment, in particular to a ship dry bilge water collection system.

Background technique

Bilge water refers to the bilge water in the engine room or cargo hold, and the piping system specially used to remove the bilge water is called the bilge water system. The bilge water system is mainly composed of bilge water pumps, bilge water pipelines, oil-water separators and related valves. The function of the bilge water system is to timely separate the water in the engine room and the cargo hold and discharge it to the overboard according to the needs of ship operation, so as to achieve the purpose of removing the sewage oil accumulated in the bilge of the ship.

Generally speaking, for a ship in normal operation, the amount of bilge water in the engine room is 1-10m ³ /d; when the ship is damaged, the bilge water system can also be used to discharge the water in an emergency. The bilge water must be removed in time, otherwise the bilge water will affect the stability of the ship, make the structure of the hull corrode and make the machinery space in a humid environment, which will endanger the safety of the ship in severe cases. The discharge method is to set up a sewage well at the bilge of each cabin, so that the bilge water flows to the sewage well to accumulate with the shaking of the ship, install a suction filter at the sewage well, and communicate with the suction pipeline, when the water level reaches a certain height When the on-duty personnel starts the bilge water pump, the bilge water is transported to the oil-water separator for treatment, and then the slop oil is discharged to the slop oil tank, and the water is discharged from the outboard pipe.

Scientific research ships are different from ordinary merchant ships. In addition to using the bilge water system to pump the bilge water in the machinery space, the general merchant ship is used to pump the accumulated water in the cargo hold. Relatively speaking, merchant ships have fewer machinery spaces and more concentrated distribution of equipment, so the bilge water in machinery spaces is also relatively concentrated, which is easy to manage. However, due to the influence of ship type and reliable equipment, scientific research ships have many machinery spaces and relatively less concentrated distribution of equipment, so there are more sewage wells for collecting bilge water. This directly leads to a longer bilge water pipeline, and the possibility that the bilge water pump cannot reach a vacuum degree or is sucked up increases when the bilge water pump is working, so that the bilge water pump cannot work normally.

More importantly, when a ship is damaged by an external force, the ship will be flooded. If a cabin of the ship is severely damaged, the water inflow speed of the cabin is greater than the drainage speed. Door. If the damaged place is located in the machinery space where the pump is located, the sewage pump and all the mechanical equipment in the cabin will stop working, which will cause the sewage in the cabin to be unable to be discharged. Even if the damaged position is blocked, the water outside the cabin cannot enter the cabin, but the water in the water inlet cabin cannot be discharged because the sewage pump cannot work. And the relevant valves connected in the cabin cannot be closed, which will affect the work of other pumps. In severe cases, the valves are not closed, which will lead to the communication between the pipelines and cause water to flow through, causing continuous danger on board.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a ship dry bilge water collection system, which can discharge the sewage in the sewage well into the bilge tank in time and can effectively prevent the occurrence of cavitation when the pump starts Case.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A dry bilge water collection system for a ship, comprising a plurality of machinery spaces, a plurality of cargo holds, a main engine room, a propulsion engine room and a bilge water tank, wherein a plurality of sewage wells are arranged in the machinery spaces and cargo holds, and multiple The two sewage wells are connected by connecting pipelines, and the connection between each sewage well and the connecting pipeline is provided with a check valve, and the daily bilge pump of the main engine cabin and the bilge pump of the main engine cabin are arranged in the main engine cabin; One end of the main engine room daily bilge pump communicates with each sewage well through a pipeline, and the other end communicates with the bilge water tank through a pipeline; one end of the main engine room bilge pump communicates with each sewage well through a pipeline. The other end communicates with the bilge water tank through a pipeline; the propulsion engine room daily bilge pump and the propulsion engine room bilge pump are arranged in the propulsion engine room; one end of the propulsion engine room daily bilge water pump passes through the pipe One end of the propulsion engine room bilge pump communicates with each sewage well through a pipeline, and the other end communicates with the bilge tank through a pipeline. cabin connected.

Further, the ship bilge water collection system also includes a bow thruster cabin, a bow jet pump is arranged in the bow side thruster cabin, and one end of the bow jet pump communicates with each sewage well through a pipeline, and the other One end communicates with the bilge tank through a pipeline.

Further, the ship bilge water collection system also includes a main control system, the main engine room daily bilge pump and the main engine room bilge pump are respectively connected to the main control system, and the propulsion engine room daily bilge pump and propulsion engine room bilge pumps are respectively connected with the main control system, and the bow jet pump is connected with the main control system.

Further, a first remote control butterfly valve is provided at the connection between each sewage well and the connecting pipeline, and a second remote control butterfly valve is provided at the water inlet and outlet of the daily bilge pump in the main engine compartment. The water inlet and outlet of the bilge pump are provided with a third remote control butterfly valve; the water inlet and outlet of the daily bilge water pump in the propulsion engine room are provided with a fourth remote control butterfly valve, and the propulsion engine room bilge The fifth remote control butterfly valve is provided at the water inlet and the water outlet of the pump; the sixth remote control butterfly valve is provided at the water inlet and the water outlet of the bow jet pump; the first remote control butterfly valve and the second remote control butterfly valve , the third remote control butterfly valve, the fourth remote control butterfly valve, the fifth remote control butterfly valve and the sixth remote control butterfly valve are respectively connected to the main control system.

Further, the sewage well is provided with a liquid level switch, a high-level pump start switch and a low-level pump stop switch, the high-level pump start switch and the low-level pump start switch are respectively connected to the main control system, and the liquid level switch is set There is a liquid level switch float; when the liquid level in the sewage well rises, the liquid in the sewage well drives the liquid level switch float upward until it touches the high-level pump switch, and the high-level pump switch will transmit the signal to the main control system, the main control system The corresponding pump will be turned on to pump water to the corresponding sewage well; when the liquid level in the sewage well drops, the liquid in the sewage well will drive the liquid level switch float down until the low-level pump stop switch is touched, and the low-level pump stop switch will transmit the signal to the main control system, the main control system will shut down the corresponding pump.

Further, the ship bilge water collection system further includes an oil-water separator, one end of the oil-water separator is connected to the bilge water tank, and the other end is connected to the outboard of the ship.

Further, the stern of the ship is provided with a steering gear cabin, a hydraulic pump station and an air compressor cabin, the steering gear cabin, a hydraulic pump station and an air compressor cabin are located on the top of the propulsion cabin, The tail sewage wells are all arranged in the engine room, and the plurality of tail sewage wells are connected with the propulsion cabin through the tail pipeline, and the tail pipeline is provided with a stop valve; using the height difference between the upper and lower floors of the cabin and passing through the tail pipe There is a stop valve on the road, which can discharge the sewage from the tail sewage well into the propulsion engine room, which can not only greatly reduce the utilization rate of pipelines and elbows, but also reduce the possibility of pump emptying.

Further, a high water level alarm device is provided on the ship, and the high water level alarm device is connected with the main control system.

Further, a mud box is connected between the sewage well and the connecting pipeline, and a filter screen is arranged in the mud box.

Further, the main engine room bilge pump is a single-screw pump, and the main engine room bilge pump is a self-priming centrifugal pump; the propulsion engine room daily bilge pump is a single-screw pump, and the propulsion engine room bilge pump is a single screw pump. The pump is a self-priming centrifugal pump.

Compared with the prior art, the beneficial effect of the present invention is that the system is provided with daily bilge pumps for the main engine room, bilge pumps for the main engine room, daily bilge water pumps for the propulsion engine room and bilge pumps for the propulsion engine room. The bilge pump, main engine room bilge pump, propulsion engine room daily bilge pump and propulsion engine room bilge pump are respectively connected to any sewage well through pipelines, so these four pumps can suck the sewage in any sewage well, It is very convenient. By setting a check valve on the connecting pipeline, it can ensure that there is a certain amount of water in the connecting pipeline, and prevent the situation of suction when the pump is started next time. In addition, when necessary, the pump in another cabin can also be used to absorb the sewage in the damaged cabin, which can better protect the safety of the people on board. When the daily bilge water pump cannot meet the needs, the main engine room bilge pump and propulsion engine room bilge pump with self-priming device can be put into use, which will greatly increase the pumping speed and increase the risk relief guarantee.

Description of drawings

Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail, wherein:

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the tail sewage well, the tail pipeline and the propulsion engine room according to the present invention.

In the figure: 11-sewage well, 12-connecting pipeline, 121-check valve, 122-first remote control butterfly valve, 21-daily bilge pump in main engine room, 22-bilge pump in main engine room, 211-second remote control Butterfly valve, 221-third remote control butterfly valve, 3-propulsion engine room, 31-daily bilge water pump in propulsion engine room, 32-propulsion engine room bilge pump, 311-fourth remote control butterfly valve, 321-fifth remote control butterfly valve, 4-bilge Water tank, 51-bow jet pump, 511-sixth remote control butterfly valve, 6-oil-water separator, 7-tail sewage well, 8-tail pipeline, 81-stop valve.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Figure 1-2, a dry bilge water collection system for a ship includes multiple machinery spaces, multiple cargo holds, main engine room, propulsion engine room 3, bilge water tank 4, bow thruster cabin and main control system, the machinery space compartment and the cargo hold are provided with a plurality of sewage wells 11, and the plurality of sewage wells 11 are connected through the connecting pipeline 12, and the connection between each sewage well 11 and the connecting pipeline 12 is provided with a stop Back valve 121. By being provided with a check valve 121 on the connecting pipeline 12, it can be ensured that there is a certain amount of water in the connecting pipeline 12, so as to prevent the situation of vacuuming when the pump is started next time.

Specifically, daily bilge pumps 21 and 22 are provided in the main engine compartment; one end of the main engine compartment daily bilge pump 21 communicates with each sewage well 11 through a pipeline, and the other end Be communicated with described bilge tank 4 by pipeline; One end of described main cabin bilge pump 22 is communicated with each sewage well 11 by pipeline, and the other end is communicated with described bilge tank 4 by pipeline; The daily bilge pump 21 of the main engine room and the bilge pump 22 of the main engine room are respectively connected with the main control system.

Specifically, the propelling cabin 3 is provided with a propelling cabin daily bilge pump 31 and a propelling cabin bilge pump 32; one end of the propelling cabin daily bilge pump 31 communicates with each sewage well 11 through a pipeline, and the other One end communicates with the bilge tank 4 through a pipeline; one end of the propulsion engine room bilge pump 32 communicates with each sewage well 11 through a pipeline, and the other end communicates with the bilge tank 4 through a pipeline; The propelling engine room daily bilge pump 31 and the propelling engine room bilge pump 32 are respectively connected with the main control system.

Specifically, the daily bilge pump 21 in the main engine room is a single-screw pump, the bilge pump 22 in the main engine room is a self-priming centrifugal pump; the daily bilge pump 31 in the propulsion engine room is a single-screw pump, and the propulsion The engine room bilge pump 32 is a self-priming centrifugal pump. Preferably, the daily bilge pump 21 of the main engine room, the bilge pump 22 of the main engine room, the daily bilge water pump 31 of the propulsion engine room and the bilge pump 32 of the propulsion engine room are respectively connected to any sewage well 11 through pipelines, so these four The pumps can suck the sewage in any sewage well 11, which is very convenient. In addition, when necessary, the pump in another cabin can also be used to suck the sewage in the damaged cabin, which can better ensure the safety of the people on board. And when running into an emergency and making the daily bilge pump 21 of the main engine compartment and the daily bilge pump 31 of the propulsion engine room unsatisfactory for use, the main engine compartment bilge pump 22 and the propulsion engine compartment bilge pump 32 of the band self-priming device can be put into operation. Using it will greatly increase the pumping speed and increase the risk relief guarantee.

Specifically, the ship bilge water collection system also includes a bow thruster cabin, and a bow jet pump 51 is arranged in the bow side thruster cabin, and one end of the bow jet pump 51 is connected to each sewage well 11 through a pipeline. The other end communicates with the bilge tank 4 through a pipeline, and the bow jet pump 51 is connected with the main control system.

Specifically, the ship bilge water collection system also includes an oil-water separator 6, one end of the oil-water separator 6 is connected to the bilge tank 4, and the other end is connected to the outboard of the ship, preferably, the bilge The water tank 4 is provided with a bilge water tank liquid level switch. When the bilge water tank liquid level switch detects that the liquid level in the tank is too high, the signal will be transmitted to the main control system, and the main control system will start the oil-water separator 6 The self-contained pump, so that the oil-water separator 6 is put into operation, the separated water with an oil concentration lower than 15PPM will be discharged overboard, and the water that does not meet the requirements will be returned to the bilge tank 4 to continue processing.

Specifically, the stern of the ship is provided with a steering gear cabin, a hydraulic pump station and an air compressor cabin, and the steering gear cabin, a hydraulic pump station and an air compressor cabin are located on the top of the propulsion cabin 3, and the steering gear cabin, the hydraulic pump station and the air compressor cabin The tail sewage wells 7 are all arranged in the press cabin, and the plurality of tail sewage wells 7 are connected with the propulsion cabin 3 through the tail pipeline 8, and the tail pipeline 8 is provided with a shut-off valve 81; the shut-off valve 81 It is a self-closing stop valve, utilizing the height difference between the upper and lower layers of the engine room and by being provided with a self-closing stop valve 81 on the tail pipeline 8, the sewage from the tail sewage well 7 can be discharged into the propulsion cabin 3, so that not only It can greatly reduce the utilization rate of pipelines and elbows, and can reduce the possibility of pump cavitation.

Specifically, a first remote control butterfly valve 122 is also provided at the connection between each sewage well 11 and the connecting pipeline 12, and a second remote control butterfly valve 211 is provided at the water inlet and outlet of the daily bilge pump 21 in the main engine room. , the water inlet and the water outlet of the main engine room bilge pump 22 are provided with a third remote control butterfly valve 221; Butterfly valve 311, the fifth remote control butterfly valve 321 is provided at the water inlet and water outlet of the propulsion engine room bilge pump 32; the sixth remote control butterfly valve is provided at the water inlet and water outlet of the bow jet pump 51 511; the first remote control butterfly valve 122, the second remote control butterfly valve 211, the third remote control butterfly valve 221, the fourth remote control butterfly valve 311, the fifth remote control butterfly valve 321 and the sixth remote control butterfly valve 511 are respectively connected to the main control system, each The first remote control butterfly valve 122 of the sewage well 11 will be placed in the closed state after the work is completed. Therefore, no matter what kind of danger occurs, the first remote control butterfly valve 122, the second remote control butterfly valve 211, the third remote control butterfly valve 221, the fourth remote control The switching of the butterfly valve 311, the fifth remote control butterfly valve 321 and the sixth remote control butterfly valve 511 can realize pipeline isolation between cabins.

Specifically, the sewage well 11 is provided with a liquid level switch, a high-level pump start switch, and a low-level pump stop switch. The high-level pump start switch and the low-level pump start switch are respectively connected to the main control system. The liquid level switch When the liquid level in the sewage well 11 rises, the liquid in the sewage well 11 will drive the liquid level switch float upward until the high-level pump switch is touched, and the high-level pump switch will transmit the signal to the main control system, the main control system will turn on the corresponding pump to pump water to the corresponding sewage well 11; when the liquid level of the sewage well 11 drops, the liquid in the sewage well 11 will drive the liquid level switch float down until the low level stop is triggered. Pump switch, the low position pump stop switch will transmit the signal to the main control system, and the main control system will shut down the corresponding pump.

Specifically, a high water level alarm device is provided on the ship, and the high water level alarm device is connected to the main control system. The high water level alarm device is an audible and visual alarm device, and a high water level alarm device is provided to better prompt Crews on board dispose of the sewage.

Specifically, a mud box is connected between the sewage well 11 and the connecting pipeline 12, and a filter screen is arranged in the mud box, and the filter screen can effectively filter out dirt or garbage in the sewage well 11 to prevent Dirt or debris is clogging the lines.

The working principle of this embodiment:

The liquid level switch placed in the sewage well 11 can detect the liquid level of the sewage well 11. When the liquid level in a certain sewage well 11 rises, the float of the liquid level switch will rise accordingly until the float of the liquid level switch touches the high-level pumping switch. The high position pump switch will transmit the signal to the main control system, and the main control system will automatically open the first remote control butterfly valve 122 of the sewage well 11 at this place, and start the water pump to pump the bilge water in the sewage well 11 to the bilge tank 4; When the float of the liquid level switch is lowered to a low level, the low-level pump stop switch is triggered, and the low-level pump stop switch will transmit a signal to the main control system, which controls the water pump to stop working; when the bilge water tank liquid in the bilge tank 4 When the level switch detects that the liquid level in the cabin is too high, it will transmit the signal to the main control system, and the main control system will start the self-contained pump of the oil-water separator 6, so that the oil-water separator 6 is put into operation; the concentration of the separated oil is low The water at 15PPM will be discharged overboard, and the water that does not meet the requirements will return to the bilge tank 4 to continue processing.

Those skilled in the art can make various other corresponding changes and deformations according to the above-described technical solutions and concepts, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (10)

1. a kind of ship dry type bilge-water collection system, it is characterised in that: including multiple machinery space cabins, multiple cargo holds, host Cabin promotes cabin (3) and bilge water tank (4), is provided with multiple bilge wells (11) in the machinery space cabin and cargo hold, multiple It is connected between bilge well (11) by connecting line (12), each bilge well (11) and the junction of the connecting line (12) are set It is equipped with check-valves (121), the daily bilge pump of engine space (21) and engine space burr pump (22) is provided in the engine space；Institute The one end for stating the daily bilge pump of engine space (21) is connected to by pipeline with each bilge well (11), and the other end passes through pipeline and institute State bilge water tank (4) connection；One end of the engine space burr pump (22) is connected to by pipeline with each bilge well (11), another End is connected to by pipeline with the bilge water tank (4)；It is provided in the propulsion cabin (3) and promotes the daily bilge pump of cabin (31) and cabin burr pump (32) are promoted；Described one end for promoting the daily bilge pump of cabin (31) passes through pipeline and each sewage Well (11) connection, the other end are connected to by pipeline with the bilge water tank (4)；Described one end for promoting cabin burr pump (32) is logical It crosses pipeline to be connected to each bilge well (1), the other end is connected to by pipeline with the bilge water tank (4).

2. a kind of ship dry type bilge-water collection system according to claim 1, it is characterised in that: further include that bow side pushes away Cabin is provided with fore body jet pump (51) in the tugboat of the bow side, and one end of the fore body jet pump passes through pipeline and each sewage Well (11) connection, the other end are connected to by pipeline with the bilge water tank (4).

3. a kind of ship dry type bilge-water collection system according to claim 2, it is characterised in that: further include main control system System, the daily bilge pump of engine space (21) and engine space burr pump (22) are connect with the master control system respectively, described It promotes the daily bilge pump of cabin (31) and cabin burr pump (32) is promoted to connect respectively with the master control system, the fore body Jet pump (51) is connect with the master control system.

4. a kind of ship dry type bilge-water collection system according to claim 3, it is characterised in that: each bilge well (11) It is additionally provided with the first remote control butterfly valve (122) with the junction of connecting line (12), the daily bilge pump of engine space (21) Water inlet and water outlet are provided with the second remote control butterfly valve (211), the water inlet of the engine space burr pump (22) and Water outlet is provided with third remote control butterfly valve (221)；It is described promote the daily bilge pump of cabin (31) water inlet and go out The 4th remote control butterfly valve (311) is provided at the mouth of a river, the water inlet for promoting cabin burr pump (32) and water outlet are equal It is provided with the 5th remote control butterfly valve (321)；It is distant that the water inlet of the fore body jet pump (51) and water outlet are provided with the 6th It controls butterfly valve (511)；It is first remote control butterfly valve (122), the second remote control butterfly valve (211), third remote control butterfly valve (221), the 4th distant Control butterfly valve (311), the 5th remote control butterfly valve (321) and the 6th remote control butterfly valve (511) are connect with the master control system respectively.

5. a kind of ship dry type bilge-water collection system according to claim 3, it is characterised in that: the bilge well (11) It is inside provided with liquid-level switch, high-order switch pump and low level termination of pumping switch, the high-order switch pump and low level play switch pump and divide It is not connect with the master control system, liquid-level switch float is provided on the liquid-level switch；When the interior liquid level liter of bilge well (11) Gao Shi, the liquid in bilge well (11) drive liquid-level switch float to rise upwards, until touch it is high-order play switch pump, a high position plays pump Switch can transfer signals to master control system, and master control system will open corresponding pump and carry out to corresponding bilge well (11) It draws water；When the decline of bilge well (11) interior liquid level, the liquid in bilge well (11) drives liquid-level switch float to decline downwards, until Low level termination of pumping switch is touched, low level termination of pumping switch can transfer signals to master control system, and master control system will close accordingly Pump.

6. a kind of ship dry type bilge-water collection system according to claim 1, it is characterised in that: further include water-oil separating Device (6), one end of the oil water separator (6) are connect with the bilge water tank (4), the outboard connection of the other end and ship.

7. a kind of ship dry type bilge-water collection system according to claim 1, it is characterised in that: the tail portion of ship is arranged There are steering gear flat, hydraulic power unit and pneumatics cabin, the steering gear flat, hydraulic power unit and air compressor machine freight space are in the propulsion cabin (3) Top, be provided with tail portion bilge well (7) in the steering gear flat, hydraulic power unit and pneumatics cabin, multiple tail portion bilge wells (7) It is connect between the propulsion cabin (3) by tail portion pipeline (8), is provided with shut-off valve (81) on the tail portion pipeline (8).

8. a kind of ship dry type bilge-water collection system according to claim 3, it is characterised in that: be provided with height on ship Level alarm for water, the high water-level alarm device are connect with the master control system.

9. a kind of ship dry type bilge-water collection system according to claim 1, it is characterised in that: the bilge well (11) It is connected with mud box between the connecting line (12), is provided with filter screen in the mud box.

10. a kind of ship dry type bilge-water collection system according to claim 1, it is characterised in that: the engine space day It is single-screw (single screw) pump with bilge pump (21), the engine space burr pump (22) is self-priming centrifugal pump；The daily cabin of the propulsion cabin It is single-screw (single screw) pump that bottom water, which pumps (31), and the propulsion cabin burr pump (32) is self-priming centrifugal pump.