JPS5930791Y2 - Water intake device on ships - Google Patents

Description

[Detailed description of the invention] This invention relates to a water intake device installed in various ships.

In ships such as fishing boats, seawater is pumped up from seawater pipes installed on the bottom of the ship using water intake pumps and used to cool engines and other equipment, but Fujibo and algae adhere to the inner walls of seawater pipes and pipes. This causes various problems, such as blocking the flow of seawater and reducing cooling capacity.

For this reason, measures have been taken such as installing filters in the seawater pipes to prevent the above-mentioned barnacles from entering the pipes, and using chemicals to kill the organisms. There are many problems, such as the need to go to a hospital and undergo internal precepts, and there are cases where drugs are not effective, so the situation is not yet satisfactory.

This invention solves the above-mentioned conventional problems by connecting engine exhaust gas or air or liquid distribution pipes heated by the exhaust gas to the cooling water distribution pipeline, which is mainly composed of seawater pipes and water intake pipes. With this system, it is possible to properly and easily kill barnacles, algae, etc. that have entered the pipes and remove them from the pipes at an early stage before they can grow. The purpose is to provide equipment.

This invention will be explained below with reference to the drawings.

Figures 1 and 4 show an embodiment of this invention, and the bottom 2 of the hull 1 may be provided with a seawater pipe 3 as usual.

The seawater pipe 3 is opened at the lower surface of the ship's bottom 2, and a bottom plate 5 with a large number of water intake holes 4 drilled in the center is provided at the opening. An intermediate plate γ having a small hole 6 formed therein is provided apart from the bottom plate 5.

The seawater pipe 3 is for introducing seawater into the hull 1 through the water intake hole 4 of the bottom plate 5 and the small hole 6 of the middle plate 1. At the top thereof, a water intake valve 10 having a filtration device 11 is connected to a water intake pump 8.
(only one of which is shown in FIG. 4) is connected to one end of the water intake pipes 9 and 9', and a circulation pipe 14 is connected to the side thereof.

The water intake pipes 9 and 9' are for pumping up seawater from the seawater pipe 3 and sending it to the engine 13 by the operation of the water intake pump 8.
The other end is connected to the engine 13.

The engine 13 also has a drain pipe 1 having a valve 15.
2 are connected to each other, and one end of a circulation pipe 14 is connected to the drain pipe 12 between the valve 15 and the engine 13.

Then, by operating the valves 15 and 160, the engine 13
The seawater that has been used to cool the seawater can be discharged overboard from the drainage pipe 12 or returned to the seawater pipe 3 through the circulation pipe 14.

The filtration device 11 has three parts such as urethane foam inside the cylindrical body 11.
Seed filters 18, 19, and 20 are packed in order of size from bottom to top to prevent clogging as much as possible and to prevent Fujibo, algae, etc. from entering the pipe. It is considered.

Further, a joint body 23 is provided at the center of the middle plate γ to connect the middle plate 1 and the bottom plate 5.

A large number of small holes 24 are provided around the lower part of the joint body 23, and inside the segment body 23, there is a retaining plate 25 at the upper part which is detachably fixed to the middle plate 1 with bolts or the like, and is made of rubber or the like. A tubular expansion valve 21 is located in the center of the bottom plate 5,
That is, it is housed facing the water intake hole 4.

The expansion valve 21 is connected to a fluid supply source (not shown) such as a compressor through a connecting pipe 22, and expands downward to block the water intake hole 4 when a fluid such as air is pressurized from the fluid supply source. It is being stolen like this.

On the other hand, the exhaust pipe 26 of the engine 13 and the water intake pipe 90
In between, a distribution pipe 30, 30' incorporating two on-off valves 2γ, 28 and a blower 29 located between them has one end on the on-off valve 27 side connected to the exhaust pipe 26, and an on-off valve 27 connected to the exhaust pipe 26, and an on-off valve 27 connected to the exhaust pipe 26.
The other end on the 8 side is connected to a water intake pipe 9°, respectively, and the water intake pipes 9, 9' are connected to the exhaust pipe 26.

In addition, in Fig. 4, 31 and 31' are water intake pipes 9.
This is a valve installed in γ.

Further, the above-mentioned distribution pipe 30' is connected to the blower 29 and the on-off valve 2γ.
is shared with the distribution pipe 30, and is branched from between the on-off valve 28 of the distribution pipe 30 and the blower 290, and is connected to the seawater pipe 3 via the water intake pipe 9' and the water intake valve 10'.
reactor.

Next, the operation of the water intake device for a ship according to this invention, which was stolen as described above, will be explained.

When cooling the engine 13, as shown by the solid line in FIG. , close the on-off valves 27 and 28 and operate the water intake pump 8 with the feeder 29 stopped.

In this operating state, seawater flows from the water intake hole 4 to the seawater pipe 3.
The water enters the engine 13, passes through the small hole 6 in the middle plate γ, passes through the filtration device 11 to remove relatively large dirt, fujibbo, etc., enters the engine 13 and works to cool it, and finally passes through the drain pipe 12. be ejected overboard.

In addition, when exterminating organisms such as Fujibo that have entered the pipe, open and close the water intake valve 10 and valve 15.31.
27, 28, valves 16, 31' are closed, the engine 13 is operated under no load with the blower 29 stopped, and after a while, the valve 15 is closed and the valve 16 is opened.

The seawater taken into the seawater pipe 3 from the water intake hole by this operation is supplied to the engine 13 through the water intake pipe 9 by the water intake pump 8, and works to cool it (after being heated, it is returned to the seawater pipe through the circulation pipe 14). Cycle to 3.

Due to this circulation action, the cooling water of the engine 13 reaches a temperature of about 60°C, which kills shellfish, etc., so if the engine 13 is operated for a while in this state and the valve 15 is opened, the internal Fujibo etc. will die and the drain pipe Be ejected from 12.

However, if the temperature of the seawater is low during each period and the temperature of the cooling water does not rise to a temperature that will kill the shellfish algae only by circulating the cooling water, the on-off valve 27 is opened and the blower 29 By operating the engine 13 and sending the exhaust gas from the engine 13 through the one distribution pipe 30, the other distribution pipe 30', the water intake pipe, and the water intake valve 10' into the seawater pipe 3,
Easily raise the cooling water temperature to the required value.

In addition, at the end of the above operation, if the water intake hole 4 is closed to prevent seawater from flowing into the seawater pipe 3 and warm water is retained in the seawater □3, the hot water will cause the Fujibbo Temple in the seawater pipe 3 to be heated. You can kill it.

In addition, although the above method is basically used to exterminate Fujibuki etc. existing in the cooling water distribution pipe using exhaust gas, it can also be carried out by operations other than those described above.

FIG. 5 shows another embodiment, in which the exhaust pipe 2 of the engine 13
6 is equipped with a heat exchanger 32, through which seawater or air heated by the exhaust gas can be sent to the cooling water distribution line through the distribution pipe 30.

In this example, the distribution pipes etc. of the cooling water are shown in Figures 1 to 4.
It is the same as shown in the figure.

In the above two embodiments, the sealing device for the seawater container 3, which mainly includes the valve 21, is used to inspect the filtration device 11,
Although this is the best way to exterminate the organisms inside, it is possible to use a sealing device with a different structure.

Furthermore, although one end of the distribution pipe 30 is connected to the water intake pipe 9, it may also be connected to other parts of the cooling water distribution pipe.

In the above embodiment, the exhaust gas of the engine 13 or the fluid heated by the exhaust gas is directly sent into the seawater housing 3 through the distribution pipe 30 to heat the cooling water of the engine 13, but instead of this, The distribution pipe 30
to be released to the atmosphere through the inside of the seawater enclosure 3,
The seawater in the seawater tank 3 may be heated by indirect heat exchange with the exhaust gas.

In this case, the humidity of the seawater sent from the seawater casing 3 to the circulation pipe to the engine 13 can be increased to the required value only by heat exchange with the exhaust gas. It is not necessary to circulate to the case 3.

As explained above, the water intake device according to this invention includes a water intake valve 10 equipped with a filtration device 11 in a seawater container 3 provided on the bottom 2 of the ship, and a water stop valve 21 for opening and closing the water intake hole 4 of the seawater container 3. A water intake pump 8 is provided between the engine 13 and the seawater casing 3, and when the water intake pump 8 operates, a water intake pipe 9 takes in seawater from the water hole 4 and sends it to the engine 13.
has one end connected to the water intake valve 10, and the other end connected to the engine 1.
3, and a drainage pipe 1 for discharging the seawater taken into the engine 13 by the water intake pump 8 and used to cool the engine 13.
On the other hand, the exhaust pipe 26 of the engine 13 is equipped with an on-off valve 28 and a fluid pump 29.
A distribution pipe 30 is provided to send the exhaust gas of No. 3 or a fluid heated by the exhaust gas to a cooling water distribution pipeline mainly consisting of the seawater case 3 and the water intake pipe 9, and a fluid pump 29 on the exhaust pipe 26 side. Since the distribution pipe 30 is connected to the seawater casing 3 by pipes 30' and 9' between the on-off valve 28 on the distribution pipe side, heated seawater and It is possible to directly or indirectly flow the exhaust gas into the cooling water distribution pipe to raise the cooling water in the pipe to the required temperature, and easily kill living things such as Fujibo in the pipe. Above, with the on-off valve 28 closed, the fluid pump 29 is operated, and while water is flowing through the water intake pipe 9, the exhaust gas is... Eve 30'
The thermal energy of the exhaust gas can be effectively used to efficiently kill living things, such as by controlling the flow to the ship and the surrounding environment. There is.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; Fig. 1 is a sectional view of the seawater □ portion of the water intake device according to this invention, Fig. 2 is a plan view of the middle plate, Fig. 3 is a plan view of the bottom plate, FIG. 4 is a schematic diagram of the water intake device of this invention, and FIG. 5 is a schematic diagram showing another example of connecting distribution pipes aligned with the exhaust pipe. 2...Bottom, 3...Seawater enclosure, 4...
...Water intake hole, 8...Water intake pump, 95g...
... Water intake pipe, 13 ... Engine, 10
... Water intake valve, 11 ... Filtration device, 12
... Drain pipe, 21 ... Water stop valve, 2
6...Exhaust pipe, 28...Opening/closing valve, 29
...Blower (fluid pump), 30,30'...
・Distribution pipe.

Claims (1)

[Scope of utility model registration request] A water intake valve 10 equipped with a filtration device 11 is provided in a seawater pipe 3 provided on the bottom of the ship 2, and a water stop valve 2 that opens and closes a water intake hole 4 of the seawater pipe 3.
A water intake pump 8 is provided between the engine 13 and the seawater pipe 3, and when the water intake pump 8 operates, a water intake pipe 9 that takes in seawater from the water hole 4 and sends it to the engine 13 connects one end to the water intake valve. 10 and the other end is connected to an engine 13, and a drainage pipe 12 is connected to the engine 13 for discharging the seawater taken in by the area water pump 8 and used to cool the engine 13. On the lower side, the exhaust pipe 26 of the engine 13 is equipped with an on-off valve 2B and a fluid pump 29, and the exhaust gas of the engine 13 or a fluid heated by the exhaust gas is supplied mainly to the seawater pipe 3 and the water intake pipe 9. A distribution pipe 30 is provided to send the cooling water to the seawater pipe 3, and the distribution pipe 30 is connected to the seawater pipe 3 between the fluid pump 29 on the exhaust pipe 26 side and the on-off valve 28 on the distribution pipe side. A water intake device for a ship, characterized in that the water intake device is connected by pipes 30' and 9'.