Distributed seawater system in ship engine room area and ship

Abstract

The invention discloses a distributed seawater system in a marine engine room area and a ship, the seawater system comprises seawater tanks and a seawater main pipe, the two ends of the seawater main pipe are respectively connected with one seawater tank, the seawater system further comprises a plurality of pump set units, the pump set units are uniformly distributed at the radial side position of the seawater main pipe and are arranged in the axial direction, and the pump set units are connected with the seawater main pipe. An isolating valve, a filter and a seawater pump are arranged in each pump set unit, the seawater pumps and the filters are equal in number and are in one-to-one correspondence, one sides of the filters are connected with the seawater pumps, and the other sides of the filters are connected to the seawater header pipe through the isolating valves. Each sea water pump is independently provided with one sea water filter, each set of sea water pump and sea water filter can operate independently and are standby for each other, the specification and size of the sea water filter independently arranged on each sea water pump are much smaller than those of a sea water filter only arranged on a sea water main pipe in the prior art, and operability and cleaning efficiency are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of shipbuilding, and in particular to a distributed seawater system in a ship engine room area and a ship. Background Art

[0002] As the basic system for cooling large ship equipment, the seawater cooling system needs to operate for a long time and ensure good cooling effect. Since the cooling medium is seawater, which contains a lot of garbage and impurities, after flowing through the seawater filter for a long time, the impurities will gradually accumulate inside the filter and cause blockage, resulting in a reduction in the seawater flow in the seawater pipeline, a poor cooling effect, or even complete blockage and interruption. Therefore, in the past, ships usually set up a seawater filter at the water inlet at both ends of the seawater main to achieve the purpose of filtering and removing impurities from the seawater. However, since the seawater filter is arranged at both ends of the seawater main, when the seawater filter is blocked and when the seawater filter is cleaned, the flow of all seawater pumps will be affected. Moreover, with the trend of increasingly large ships and more and more equipment systems using seawater, if only one seawater filter is configured at each end of the seawater main, the size of the seawater filter will become larger and larger. For example, the seawater filter of a large container ship with a capacity of 23,000 TEUs needs to be a giant size with a diameter of 1.8 meters. Not only is it difficult to install and arrange, but also special slings and other supporting facilities are required during the cleaning operation. At the same time, more than two people are required to complete the cleaning work, which is time-consuming and laborious.

[0003] The prior art (CN114030582A) discloses an integrated engine room seawater cooling system, comprising a first water intake circuit, a first water supply circuit and a first drainage pipeline connected in sequence, and a second water intake circuit, a second water supply circuit and a second drainage pipeline connected in sequence; the inlets of the two water intake circuits are respectively connected to the water inlet sea valve box, and the two water intake circuits are connected through a water intake circuit bridge pipe; the first water supply circuit and the second water supply circuit are connected through a water supply circuit bridge pipe, and the first water supply circuit and the second water supply circuit provide cooling water for an air cooler and / or an equipment cooler; the first water supply circuit and the second water supply circuit are respectively connected to corresponding drainage pipelines, and the outlets of the drainage pipelines are respectively connected to the drainage seawater valve box. The integrated engine room seawater cooling system adopts a triple protection redundant design method of "double water intake circuit, double water supply circuit, emergency water supply circuit", which improves the safety, reliability and redundancy of the ship engine room seawater cooling system, but it does not solve the problem of time-consuming and labor-intensive cleaning of seawater filters, nor does it solve the installation difficulties caused by the increasing size of seawater filters on large ships. Summary of the invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a distributed seawater system and a ship in the engine room area of ​​a ship. By distributing seawater filters, the reliability of the seawater system is improved and the cleaning of the seawater filters is made more convenient and efficient.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A distributed seawater system for a ship's engine room area, the seawater system comprising a seawater tank and a seawater main, with a seawater tank connected to each end of the seawater main, and a plurality of pump units, the pump units are arranged at radial positions of the seawater main and arranged axially, each pump unit is provided with an isolation valve, a filter and a seawater pump, the number of the seawater pumps and the filters are equal and correspond one to one, one side of the filter is connected to the seawater pump, and the other side is connected to the seawater main through the isolation valve.

[0007] In the distributed seawater system in the engine room area of ​​a ship of the present invention, the seawater pump is a pump that functionally uses seawater as a medium, including a fire pump, a ballast pump and a seawater cooling pump.

[0008] In a distributed seawater system in a ship engine room area of ​​the present invention, further, seawater pumps with the same function are arranged adjacent to each other to achieve a mutual backup function, and two pump group units containing the fire pump are provided, and the two pump group units are arranged adjacent to each other.

[0009] In a distributed seawater system in a ship engine room area of ​​the present invention, further, seawater pumps with the same functionality are arranged adjacent to each other to achieve a mutual backup function, and two pump group units containing the ballast pump are provided, and the two pump group units are arranged adjacent to each other.

[0010] In a distributed seawater system in a ship engine room area of ​​the present invention, further, seawater pumps with the same function are arranged adjacent to each other to achieve mutual backup function, three pump group units containing the seawater cooling pump are provided, and the three pump group units are arranged adjacent to each other.

[0011] In a distributed seawater system in a ship engine room area of ​​the present invention, the seawater pump, the filter and the isolation valve are connected by detachable bolts.

[0012] In a distributed seawater system in a ship engine room area of ​​the present invention, in a same pump unit, the flow rate of the seawater pump corresponds to the specification size of the filter one by one.

[0013] In the distributed seawater system for the engine room area of ​​a ship of the present invention, further, the specification size of the filter has a diameter range of 300-800 mm.

[0014] The present invention also provides a ship, which comprises a distributed seawater system in the ship's engine room area.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) In a distributed seawater system for a ship engine room area of ​​the present invention, pump units of the same type are independent of each other and serve as backup for each other. In the same pump unit, the seawater pump and the filter are independent of each other and serve as backup for each other, thereby improving the reliability of the seawater cooling system.

[0017] (2) In the distributed seawater system for the engine room area of ​​a ship of the present invention, the filter configured for each seawater pump is smaller in size, which is more convenient and efficient to clean, saving time and effort, and the cleaning of a single filter will not affect the normal operation of the seawater cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a distributed seawater system in a ship engine room area according to the present invention.

[0019] In the figure: 1. Seawater tank; 2. Seawater main; 3. Isolation valve; 4. Filter; 5. Fire pump; 6. Ballast pump; 7. Seawater cooling pump. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with specific implementation methods:

[0021] The present invention is a distributed seawater system for a ship's engine room area. The seawater system includes a seawater tank and a seawater main pipe. A seawater tank is connected to each end of the seawater main pipe. The system also includes a plurality of pump units. The pump units are arranged at radial positions of the seawater main pipe and arranged axially. Each pump unit is provided with an isolation valve, a filter and a seawater pump. The number of the seawater pumps and the filters is equal and one-to-one corresponding. One side of the filter is connected to the seawater pump, and the other side is connected to the seawater main pipe through the isolation valve.

[0022] In a distributed seawater system in a ship engine room area of ​​the present invention, the same type of pump units are independent of each other and serve as backup for each other, and in the same pump unit, the seawater pump and the filter are independent of each other and serve as backup for each other, thereby improving the reliability of the seawater cooling system. Since the filter configured separately for each seawater pump is small in size, it is more convenient and efficient to clean, saving time and effort, and the cleaning of a single filter will not affect the normal operation of the seawater cooling system.

[0023] Example 1

[0024] like Figure 1As shown, this embodiment is a distributed seawater system in the engine room area of ​​a ship, including a seawater tank 1, a seawater main pipe 2 and a plurality of pump units. The seawater main pipe 2 is connected to the seawater tank 1, and the pump unit is arranged on the seawater main pipe 2. The pump unit includes an isolation valve 3, a seawater pump and a filter 4. The number of seawater pumps and filters 4 is equal and one-to-one corresponding. One side of the filter 4 is connected to the seawater pump, and the other side of the filter 4 is connected to the seawater main pipe 2 through the isolation valve 3. The reliability of the system is improved by the distributed arrangement of the seawater filter 4.

[0025] In the same pump unit, the seawater pump is close to the filter 4 and is detachably connected to the filter 4, and the sizes and filtering accuracies of the seawater pump and the filter 4 correspond one to one and match each other to achieve the effect that the seawater pump and the filter 4 are independent of each other and serve as backup for each other.

[0026] In this embodiment, the types of seawater pumps include various functional centrifugal pumps such as fire pump 5, ballast pump 6 and seawater cooling pump 7. Fire pump 5 is used for fire extinguishing, ballast pump 6 is used for pumping water to ballast tanks, and seawater cooling pump 7 is used for equipment cooling.

[0027] The pump units containing seawater pumps with the same functions are arranged in parallel and the number is 2-3. The pump units are equipped with two for use and one for backup or one for use and one for backup, which not only improves the reliability of the system but also does not cause excessive waste.

[0028] The pump unit is detachably connected to the seawater main pipe 2. When a pump unit is blocked, it is only necessary to close the isolation valve and start the standby pump unit, which will not affect the use of the seawater cooling system.

[0029] Example 2

[0030] Usually, the specification of container ships is 1000-24000 containers / ship, and the diameter of the filter 4 corresponding to a single seawater pump ranges from 300 to 800 mm.

[0031] In this embodiment, the diameter of the filter 4 is 600 mm, which is much smaller than the 1.8 m diameter seawater filter used when all seawater pumps are equipped with only two seawater filters, making it more convenient to clean and maintain. Since each seawater pump is equipped with a seawater filter, each group of seawater pumps and seawater filters can operate independently and serve as backup for each other, which effectively improves the reliability of the seawater cooling system and the convenience of maintenance operations. In particular, the size of the seawater filter independently equipped with each seawater pump is much smaller than that of the seawater filter only equipped in the seawater main pipe in the past, so a single person can complete the filter cleaning work, greatly improving the operability and cleaning efficiency.

[0032] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A distributed seawater system in a ship's engine room area, the seawater system comprising a seawater tank and a seawater main pipe, with a seawater tank connected to each end of the seawater main pipe, characterized in that: It also includes a plurality of pump units, which are arranged at the radial side of the seawater main pipe and arranged axially. Each pump unit is provided with an isolation valve, a filter and a seawater pump. The number of the seawater pumps and filters is equal and one-to-one corresponding. One side of the filter is connected to the seawater pump, and the other side is connected to the seawater main pipe through the isolation valve.

2. A distributed seawater system for a ship engine room area according to claim 1, characterized in that: The seawater pump is a pump that functionally uses seawater as a medium, including a fire pump, a ballast pump and a seawater cooling pump.

3. A distributed seawater system for a ship engine room area according to claim 2, characterized in that: The seawater pumps with the same function are arranged adjacent to each other to realize the mutual backup function. Two pump group units containing the fire pump are provided, and the two pump group units are arranged adjacent to each other.

4. A distributed seawater system for a ship engine room area according to claim 2, characterized in that: The seawater pumps with the same function are arranged adjacent to each other to realize the mutual backup function. Two pump group units containing the ballast pump are provided, and the two pump group units are arranged adjacent to each other.

5. A distributed seawater system for a ship engine room area according to claim 2, characterized in that: The seawater pumps with the same function are arranged adjacent to each other to realize the mutual backup function. Three pump group units containing the seawater cooling pumps are provided, and the three pump group units are arranged adjacent to each other.

6. A distributed seawater system for a ship engine room area according to claim 1, characterized in that: The seawater pump, filter and isolation valve are connected by detachable bolts.

7. A distributed seawater system for a ship engine room area according to claim 1, characterized in that: In the same pump unit, the flow rate of the seawater pump corresponds to the specification and size of the filter.

8. A distributed seawater system for a ship engine room area according to claim 1 or 7, characterized in that: The size and diameter of the filter are in the range of 300-800 mm.

9. A ship, characterized in that: The ship comprises a distributed seawater system for a ship engine room area as described in any one of claims 1-8.

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