CN113107665A - Marine diesel power station sea water common rail reposition of redundant personnel cooling system - Google Patents
Marine diesel power station sea water common rail reposition of redundant personnel cooling system Download PDFInfo
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- CN113107665A CN113107665A CN202110448173.XA CN202110448173A CN113107665A CN 113107665 A CN113107665 A CN 113107665A CN 202110448173 A CN202110448173 A CN 202110448173A CN 113107665 A CN113107665 A CN 113107665A
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- seawater
- water
- water inlet
- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/06—Cleaning; Combating corrosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/06—Cleaning; Combating corrosion
- F01P2011/061—Cleaning or combating corrosion using filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a seawater common rail split-flow cooling system for a marine diesel power station, which comprises a water inlet pipeline, a steady flow pipeline, a water inlet main pipe, a plurality of seawater users of the diesel power station and a water outlet main pipe, wherein the inlet of the water inlet pipeline is communicated with a water inlet sea valve box, the outlet of the water inlet pipeline is communicated with the inlet of the steady flow pipeline, and a seawater filter and a seawater pump are sequentially arranged on the steady flow pipeline along the water flow direction; the outlet of the steady flow pipeline is communicated with a water inlet main pipe, the water inlet main pipe is communicated with the water inlets of all seawater users through all branch pipelines, the water outlets of all seawater users are communicated with a water drainage main pipe, and the water drainage main pipe is communicated with a water drainage sea valve box. The invention has the beneficial effects that: the invention constructs an open seawater common rail cooling circulation architecture, adopts a seawater pump to supply cold and discharge cold for all seawater users of a diesel engine power station in an integrated manner, utilizes the variable frequency speed regulation of the seawater pump to track the flow load change of the seawater users, and avoids the instability of the water supply and discharge pressure of a seawater system based on the energy storage and pressure stabilization of a water inlet main pipe.
Description
Technical Field
The invention belongs to the field of design of ship power systems, and particularly relates to a seawater common rail flow splitting and cooling system for a marine diesel engine power station.
Background
The seawater system of the marine diesel engine power station is an important system for guaranteeing seawater users such as diesel engines, generators, ventilation cooling, diesel coolers, lubricating oil coolers, air coolers and the like in a cabin. Because the sea water cooling flow and pressure of each sea water user have great difference, an independent water supply configuration mode is adopted in the traditional ship design, after sea water is sucked from a sea water valve box, an electric sea water pump provides cooling water for the corresponding sea water user, and the sea water cooled by each user is directly discharged outboard from a sea through valve box.
Traditional diesel engine power plant sea water system pipeline based on real ship diesel engine power plant and operation experience design is too complicated, and sea water pipeline integration level is not high, and real ship diesel engine power plant space is limited, has arranged certain influence to diesel engine power plant equipment. In addition, in the actual operation process, the outboard seawater line can fluctuate constantly, the fluctuation of seawater supply and drainage can be caused directly, particularly, the electric seawater pump is generally arranged at a high position and is far away from a water suction port of the pump, the water suction and supply capacity of a seawater system of a diesel power station is more difficult to meet, and the diesel engine can be shut down emergently under the serious conditions of insufficient cold source or water pressure instability and the like. In addition, because of the pollution of real marine organisms, the failure of a seawater system is often caused, and the online processing capacity of the failure of the seawater system needs to be improved.
Therefore, the seawater common rail flow dividing and cooling system for the marine diesel power station needs to be provided urgently to improve the integration capacity of the seawater system of the diesel power station, improve the water supply stability of the diesel power station and improve the rapid fault handling level of the seawater system of the diesel power station.
Disclosure of Invention
The invention aims to provide a seawater common rail flow-dividing and cooling system for a marine diesel engine power station, which aims to overcome the defects of low seawater suction capacity, unstable water pressure and insufficient adaptability of the conventional diesel engine power station, realize the integration of a diesel engine power station seawater system, improve the stability of water supply and drainage of the diesel engine power station seawater system, and improve the online isolation and quick reconfiguration capacity of system faults.
The technical scheme adopted by the invention is as follows: a seawater common rail shunting cooling system for marine diesel engine power stations comprises a water inlet pipeline, a steady flow pipeline, a water inlet main pipe, seawater users of a plurality of diesel engine power stations and a water drainage main pipe, wherein the inlet of the water inlet pipeline is communicated with a water inlet sea valve box, the outlet of the water inlet pipeline is communicated with the inlet of the steady flow pipeline, and a seawater filter and a seawater pump are sequentially installed on the steady flow pipeline along the water flow direction; the outlet of the steady flow pipeline is communicated with a water inlet main pipe, the water inlet main pipe is communicated with the water inlets of all seawater users through all branch pipelines, the water outlets of all seawater users are communicated with a water drainage main pipe, and the water drainage main pipe is communicated with a water drainage sea valve box.
According to the scheme, the water injection ejector is installed in the water inlet sea chest, the water inlet of the water injection ejector is communicated with the interior of the water inlet sea chest, and the water outlet of the water injection ejector is communicated with the inlet of the water inlet pipeline.
According to the scheme, the water inlet pipeline is correspondingly provided with the shunt pipeline, one end of the shunt pipeline is communicated with the water inlet main pipe, and the other end of the shunt pipeline is communicated with the injection port of the water injection ejector at the water inlet of the water inlet pipeline.
According to the scheme, the flow limiting device is arranged on the flow dividing pipeline.
According to the scheme, the sea water pump is an electric sea water pump; the seawater filter is a duplex seawater filter.
According to the scheme, the sea sluice valves are respectively arranged on the water inlet pipeline and the drainage main pipe.
The invention has the beneficial effects that: the invention designs a water inlet and outlet main pipe of a diesel engine power station, constructs an open seawater common rail cooling circulation architecture, adopts a seawater pump to supply and discharge cold for all seawater users of the diesel engine power station integrally, utilizes the variable frequency speed regulation of the seawater pump to track the flow load change of the seawater users, avoids the instability of the water supply and outlet pressure of a seawater system based on the energy storage and pressure stabilization of the water inlet main pipe, and utilizes the bypass flow division of the seawater common rail main pipe (a designed flow division pipeline) to realize the injection pressurization of the inlet of the seawater pump and improve the high pumping capacity of the seawater; meanwhile, the sea gate valve is arranged, so that the fault on-line isolation of the seawater system of the diesel engine power station and the quick reconstruction of the common rail cooling system framework are realized, and the reliability of the seawater system of the diesel engine power station is improved. The technical scheme of the invention can be used for the overall design of a ship power system, solves the technical problems of low seawater suction capacity, complex seawater pipeline, insufficient adaptability and the like of the diesel engine power station, realizes the integration of the seawater system of the diesel engine power station based on a seawater common rail architecture, improves the water suction capacity of the seawater pump of the diesel engine power station and the cooling capacity of each seawater user, and improves the space utilization rate of the diesel engine power station.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. a sea water pump; 2. a diesel engine; 3. a generator; 4. a cabin ventilation cooler; 5. a diesel return cooler; 6. water inlet sea valve box; 7. a seawater filter; 8. a water jet ejector; 9. a water inlet main pipe; 10. a main drain pipe; 11. a shunt tube; 12. a current limiter; 13. a drainage sea valve box; 14. a sea sluice valve.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
The seawater common rail split-flow cooling system for the marine diesel power station comprises a water inlet pipeline, a steady flow pipeline, a water inlet main pipe 9, a plurality of seawater users of the diesel power station and a water drainage main pipe 10, wherein an inlet of the water inlet pipeline is communicated with a water inlet sea through valve box 6, an outlet of the water inlet pipeline is communicated with an inlet of the steady flow pipeline, and a seawater filter 7 and a seawater pump 1 are sequentially installed on the steady flow pipeline along the water flow direction; the outlet of the steady flow pipeline is communicated with a water inlet main pipe 9, the water inlet main pipe 9 is communicated with the water inlets of all seawater users through branch pipelines, the water outlets of all seawater users are communicated with a water drainage main pipe 10, and the water drainage main pipe 10 is communicated with a water drainage sea valve box 13.
Preferably, a water injection ejector 8 is installed in the water inlet sea chest 6, a water inlet of the water injection ejector 8 is communicated with the interior of the water inlet sea chest 6, and a water outlet of the water injection ejector 8 is communicated with an inlet of the water inlet pipeline.
In the invention, the sea water pump 1 is an electric sea water pump; the seawater filter 7 is a duplex seawater filter 7; the seawater users include a diesel engine 2, a generator 3, a cabin ventilation cooler 4 and a diesel return oil cooler 5. The sea water pump 1 sucks water from the two side intake sea valve box 6, the sea water filter 7 is used for purification, and the water injection ejector 8 arranged in the intake sea valve box 6 is used for pressurizing the seawater at the inlet of the sea water pump 1, so that the water absorption capacity of the sea water pump 1 arranged at a high position is improved. The seawater pump 1 provides a cold source for each seawater user, and the seawater flow demand of each seawater user is continuously tracked through the variable-frequency speed regulation of the electric seawater pump 1.
Preferably, the water inlet pipeline is correspondingly provided with 11 paths of flow dividing pipes, one ends of the 11 paths of flow dividing pipes are communicated with the water inlet main pipe 9, and the other ends of the 11 paths of flow dividing pipes are communicated with the water injection port of the water injection ejector 8 at the water inlet of the water inlet pipeline. Preferably, a flow restrictor 12 is arranged on the shunt 11. In this embodiment, two water inlet pipelines are designed, each water inlet pipeline is correspondingly provided with 11 branches of flow dividing pipes, the flow restrictor 12 is installed on each branch of flow dividing pipe 11, and outlets of the branch of flow dividing pipes 11 are communicated with an injection port of the water jet ejector 8 at a water inlet of the water inlet pipeline. Two branches 11 led out from the water inlet main pipe 9 utilize a current limiter 12 to adjust the flow of seawater of the seawater pump 1 and also serve as a power source of the water jet ejector 8.
In the invention, a water inlet main pipe 9 and a water outlet main pipe 10 are uniformly arranged at a water inlet and a water outlet of each user of seawater of a diesel engine power station to form a seawater common rail cooling framework; the seawater pump 1 is used for pressurizing the water inlet main pipe 9, and then the water is distributed to each seawater user after the pressure of the water inlet main pipe 9 is stabilized; the seawater cooled by each seawater user is collected by the main drainage pipe 10 and directly discharged to the two side drainage sea chest 13. The sea sluice valves 14 are respectively arranged on the water inlet pipeline and the main drainage pipe 10, and when a ship board fails, the sea sluice valves 14 are used for quickly separating, so that fault online isolation and seawater cooling framework reconstruction are realized.
The open type seawater common rail cooling circulation architecture is constructed by arranging the intake and exhaust water main pipes of the diesel power station, the electric seawater pump 1 is adopted to supply and discharge cold for all seawater users of the diesel power station integrally, the variable frequency speed regulation of the electric seawater pump 1 is utilized to track the flow load change of the seawater users, the instability of the supply and discharge pressure of a seawater system is avoided based on the energy storage and pressure stabilization of the seawater main pipe, the bypass flow division of the seawater common rail main pipe (11 paths of the designed flow division pipes) is utilized to realize the injection pressurization of the intake of the seawater pump 1, and the high absorption capacity of the seawater pump 1 is improved; meanwhile, by arranging the seawater isolating valve, the fault online isolation of the seawater system of the diesel engine power station and the quick reconstruction of the common rail cooling system framework are realized, and the reliability of the seawater system of the diesel engine power station is improved.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the drawings. Therefore, it is intended that all equivalents and modifications which do not depart from the spirit of the invention disclosed herein are deemed to be within the scope of the invention.
Claims (6)
1. A seawater common rail flow splitting and cooling system for marine diesel power stations is characterized by comprising a water inlet pipeline, a flow stabilizing pipeline, a water inlet main pipe, a plurality of seawater users of the diesel power stations and a water drainage main pipe, wherein the inlet of the water inlet pipeline is communicated with a water inlet sea valve box, the outlet of the water inlet pipeline is communicated with the inlet of the flow stabilizing pipeline, and a seawater filter and a seawater pump are sequentially installed on the flow stabilizing pipeline along the water flow direction; the outlet of the steady flow pipeline is communicated with a water inlet main pipe, the water inlet main pipe is communicated with the water inlets of all seawater users through all branch pipelines, the water outlets of all seawater users are communicated with a water drainage main pipe, and the water drainage main pipe is communicated with a water drainage sea valve box.
2. The marine diesel power station seawater common rail split-flow cooling system of claim 1, wherein a water jet ejector is installed in the water inlet sea chest, a water inlet of the water jet ejector is communicated with the inside of the water inlet sea chest, and a water outlet of the water jet ejector is communicated with an inlet of a water inlet pipeline.
3. The marine diesel power station seawater common rail flow splitting and cooling system of claim 1, wherein the water inlet pipeline is correspondingly provided with a flow splitting pipeline, one end of the flow splitting pipeline is communicated with the water inlet main pipe, and the other end of the flow splitting pipeline is communicated with an injection port of a water injection ejector at a water inlet of the water inlet pipeline.
4. The marine diesel power plant seawater common rail split cooling system of claim 3, wherein a flow restrictor is arranged on the split pipe.
5. The marine diesel power plant seawater common rail split cooling system of claim 3, wherein the seawater pump is an electric seawater pump; the seawater filter is a duplex seawater filter.
6. The marine diesel power plant seawater common rail split-flow cooling system of claim 3, wherein the water inlet pipeline and the water discharge main pipe are respectively provided with a sea gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448173.XA CN113107665A (en) | 2021-04-25 | 2021-04-25 | Marine diesel power station sea water common rail reposition of redundant personnel cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448173.XA CN113107665A (en) | 2021-04-25 | 2021-04-25 | Marine diesel power station sea water common rail reposition of redundant personnel cooling system |
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| Publication Number | Publication Date |
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| CN113107665A true CN113107665A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110448173.XA Pending CN113107665A (en) | 2021-04-25 | 2021-04-25 | Marine diesel power station sea water common rail reposition of redundant personnel cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030582A (en) * | 2021-10-19 | 2022-02-11 | 中国舰船研究设计中心 | Integrated cabin seawater cooling system |
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| CN203358863U (en) * | 2013-07-04 | 2013-12-25 | 南京中船绿洲环保有限公司 | Ship central cooling system |
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| CN206929144U (en) * | 2017-03-21 | 2018-01-26 | 斯派莎克工程（中国）有限公司 | A kind of multistage multi-port injector device |
| CN210660286U (en) * | 2019-09-29 | 2020-06-02 | 潍柴重机股份有限公司 | Marine engine seawater cooling system |
| WO2020108953A1 (en) * | 2018-11-30 | 2020-06-04 | Golar Management Norway As | A system for controlling a flow of water from a process facility onboard a vessel |
| CN212667630U (en) * | 2020-05-28 | 2021-03-09 | 福建省聚兴凯平船业有限公司 | Marine seawater cooling and supplying system |
-
2021
- 2021-04-25 CN CN202110448173.XA patent/CN113107665A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203358863U (en) * | 2013-07-04 | 2013-12-25 | 南京中船绿洲环保有限公司 | Ship central cooling system |
| CN204660008U (en) * | 2015-04-08 | 2015-09-23 | 江苏宏强船舶重工有限公司 | A kind of oil tanker main frame fuel oil salt water cooling system |
| CN206929144U (en) * | 2017-03-21 | 2018-01-26 | 斯派莎克工程（中国）有限公司 | A kind of multistage multi-port injector device |
| WO2020108953A1 (en) * | 2018-11-30 | 2020-06-04 | Golar Management Norway As | A system for controlling a flow of water from a process facility onboard a vessel |
| CN210660286U (en) * | 2019-09-29 | 2020-06-02 | 潍柴重机股份有限公司 | Marine engine seawater cooling system |
| CN212667630U (en) * | 2020-05-28 | 2021-03-09 | 福建省聚兴凯平船业有限公司 | Marine seawater cooling and supplying system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030582A (en) * | 2021-10-19 | 2022-02-11 | 中国舰船研究设计中心 | Integrated cabin seawater cooling system |
| CN114030582B (en) * | 2021-10-19 | 2024-01-26 | 中国舰船研究设计中心 | Integrated cabin seawater cooling system |
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Application publication date: 20210713 |