CN115405412B - Closed-loop circulating type fresh water cooling system for ocean platform host machine in high turbidity sea area - Google Patents
Closed-loop circulating type fresh water cooling system for ocean platform host machine in high turbidity sea area Download PDFInfo
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- CN115405412B CN115405412B CN202110595808.9A CN202110595808A CN115405412B CN 115405412 B CN115405412 B CN 115405412B CN 202110595808 A CN202110595808 A CN 202110595808A CN 115405412 B CN115405412 B CN 115405412B
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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
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
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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
-
- 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
- F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
- F01P9/02—Cooling by evaporation, e.g. by spraying water on to cylinders
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
高浊度海域海洋平台主机闭路循环式淡水冷却系统，包括淡水冷却循环舱、主用冷却循环泵、备用冷却循环泵、水冷热交换器、海洋平台主发电机组、冷却管路系统、水雾喷头。系统的冷却介质为淡水，替代海水与空气，减少了对冷却管路系统及水冷热交换器的腐蚀，减少了噪音振动。冷却系统为闭路循环式，可实现淡水的无限循环利用。淡水冷却循环舱为开敞式，作用为：冷却水收集与储存、冷却系统膨胀补偿、循环水的充分散热。配备主用冷却循环泵与备用冷却循环泵，保证系统的可靠性。水雾喷头具有水雾喷射功能，喷射角不小于100°，以增大循环水的散热面积。系统内的热淡水可以进行余热回收，节能环保。
The closed-loop freshwater cooling system for the main engine of the offshore platform in high turbidity waters includes a freshwater cooling circulation tank, a main cooling circulation pump, a standby cooling circulation pump, a water-cooled heat exchanger, a main generator set of the offshore platform, a cooling pipeline system, and a water mist nozzle. The cooling medium of the system is fresh water, which replaces seawater and air, reduces the corrosion of the cooling pipeline system and the water-cooled heat exchanger, and reduces noise and vibration. The cooling system is a closed-loop circulation type, which can realize the unlimited recycling of fresh water. The freshwater cooling circulation tank is open, and its functions are: cooling water collection and storage, cooling system expansion compensation, and sufficient heat dissipation of circulating water. It is equipped with a main cooling circulation pump and a standby cooling circulation pump to ensure the reliability of the system. The water mist nozzle has a water mist spraying function, and the spraying angle is not less than 100° to increase the heat dissipation area of the circulating water. The hot fresh water in the system can be used for waste heat recovery, which is energy-saving and environmentally friendly.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a closed-loop circulating type fresh water cooling system of a main machine of a high-turbidity ocean platform in the sea.
Background
The system related by the invention is an external cooling system of a main diesel generator set (host) of a high-turbidity ocean platform, and is mainly used for taking away heat generated by the internal cooling system of the host, and has two cooling modes of air cooling and water cooling.
The air cooling is mostly carried out by adopting a mechanical mode (high-power fan) or natural wind, and the water cooling is generally carried out by adopting seawater as a medium and cooling through a heat exchanger. Because the specific heat of seawater is higher than that of air, the seawater cooling system is more efficient than an air cooling system.
However, the seawater cooling system is greatly affected by the environment, and the normal use of the seawater cooling system is restricted by factors such as sand content, corrosion, water depth, tide, platform space and the like. For example, in a sea area of a Chengdao (high turbidity sea area), the sea water turbidity is high, the sand content is large, and the sea water cooling system is difficult to use, so that most of the ocean platforms in the high turbidity sea area adopt an air cooling system with a fan.
The air cooling system carries out convection heat dissipation by virtue of the cooling fan, so that various problems exist in use, such as large volume, low energy efficiency ratio, large noise vibration and the like, and the air cooling is difficult to meet the heat dissipation requirement of a host in hot weather with high temperature, so that the cooling effect is poor.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art and provides a closed-loop circulating type fresh water cooling system for a main machine of a high-turbidity ocean platform.
The closed-loop circulating type fresh water cooling system for the host based on the fresh water cooling circulation cabin is provided, and fresh water is used as cooling medium to replace air, so that the application problem of the water cooling system in high-turbidity sea areas is solved.
The invention can replace air cooling and seawater cooling modes, greatly reduces adverse factors such as noise, corrosion and the like of a cooling system, improves cooling efficiency, prolongs the service life of the system and improves the environmental adaptability of the ocean platform in the sea area with high turbidity. In addition, the waste heat can be recycled, so that the energy is saved and the environment is protected.
The technical scheme is as follows:
The closed-cycle fresh water cooling system of the ocean platform host machine in the high turbidity sea area comprises a fresh water cooling circulation bin, a main cooling circulation pump and a water-cooling heat exchanger which are sequentially connected through cooling pipelines, wherein the water-cooling heat exchanger is also connected with the internal cooling system of the host machine of the ocean platform main generator set.
The fresh water cooling circulation bin is characterized by further comprising water mist spray heads, wherein the upstream of the fresh water cooling circulation bin is provided with a water inlet, the downstream of the fresh water cooling circulation bin is provided with a water outlet, the water inlet and the water outlet are connected with cooling pipelines, and the cooling pipelines at the upstream of the fresh water cooling circulation bin are connected with a plurality of water mist spray heads after entering the fresh water cooling circulation bin.
Further, the water mist nozzle is positioned at the upper part of the fresh water cooling circulation bin.
Further, the method further comprises the following steps:
The upper half part of the fresh water cooling circulation bin is an atomization bin, and the lower half part of the fresh water cooling circulation bin is a cooling bin;
The atomization bin is positioned below the water mist spray head, and an atomization space is reserved for fresh water sprayed out of the water mist spray head;
and cooling fins are arranged in the cooling bin.
Further, the method further comprises the following steps:
the cooling fin unsettled setting is in the atomizing storehouse, the cooling fin below is the water collecting bin, the delivery port sets up in the storehouse wall in water collecting bin.
Further, the cooling fins are arranged in a grid shape in a crisscross manner.
Further, the cooling fin is a heat conducting material.
Further, the heat conducting material is copper or aluminum.
Further, the cooling medium of the closed-loop circulating type fresh water cooling system of the main machine of the ocean platform in the high turbidity area is fresh water
Furthermore, the main cooling circulation pump is also connected with a standby cooling circulation pump in parallel.
The beneficial effects of the invention are as follows:
1. The cooling medium is fresh water, so that the difficulty in using the high-turbidity sea water cooling system is solved, the defects of noise vibration, corrosion and the like of the traditional air cooling are overcome, the spirit of HSSE is met, the cooling efficiency is improved, and the cooling system is more reliable.
2. The system is of a closed circulation type, and can realize infinite recycling of fresh water.
3. The fresh water cooling circulation cabin is open, realizes the collection and storage of cooling water and the expansion compensation of a cooling system, and carries out the full heat dissipation of circulating water, and the water mist nozzle can realize the atomization of high-temperature fresh water, thereby increasing the heat dissipation area and improving the heat dissipation efficiency.
5. The hot fresh water in the system can be subjected to waste heat recovery, energy saving and environmental protection.
6. The method is novel, convenient to install and construct, convenient to operate and control and high in practicability, and the functions of the method can be realized by modifying the method on the basis of the existing ocean platform.
Drawings
FIG. 1 is a flow chart of a closed cycle type fresh water cooling system of a main machine of a ocean platform in a high turbidity sea area;
FIG. 2 is a schematic diagram of a fresh water cooling circulation module and internal flow scheme;
FIG. 3 is a schematic diagram of a closed fresh water cooling circulation bin;
FIG. 4 is a schematic top view of a closed fresh water cooling circulation bin;
FIG. 5 is a schematic diagram of a cross-sectional structure of a closed fresh water cooling circulation bin C-C;
FIG. 6 is a schematic diagram of the front view structure of the closed fresh water cooling circulation bin;
FIG. 7 is a schematic diagram of a cross-sectional structure of a closed fresh water cooling circulation bin D-D;
In the figure:
1. Fresh water cooling circulation bin 2, main cooling circulation pump 3, reserve cooling circulation pump 4, water-cooling heat exchanger, 5, platform main generating set, 6, cooling pipeline, 7, water smoke shower nozzle, 8, cooling fin, 11, atomizing bin, 12, cooling bin, 61, water inlet, 62, delivery port, 121, water collecting bin.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings.
Embodiment one:
Referring to fig. 1-2, a closed-loop circulation type fresh water cooling system for a main machine of a high-turbidity ocean platform comprises:
The fresh water cooling circulation cabin 1, the main cooling circulation pump 2, the standby cooling circulation pump 3 and the water cooling heat exchanger 4 are sequentially connected through a cooling pipeline system to form closed circulation.
The main cooling circulating pump 2 and the standby cooling circulating pump 3 are connected in parallel, and the water-cooling heat exchanger 4 is connected with a main engine internal cooling system of the ocean platform main generator set 5 to complete heat exchange between the main engine internal cooling system and an external cooling system.
Referring to fig. 2 of the fresh water cooling circulation cabin, the fresh water cooling circulation cabin 1 is open, and a cooling pipeline 6 is connected with a water mist nozzle 7 to realize high-temperature fresh water atomization.
The invention has the use state under the actual working condition:
The low-temperature fresh water enters a cooling pipeline 6 from a fresh water cooling circulation cabin 1, is pressurized through a main cooling circulation pump 2 or a standby cooling circulation pump 3, enters a water-cooling heat exchanger 4, exchanges heat with high-temperature coolant in a main generator set 5 of the ocean platform, takes away heat of a cooling system in the main machine, realizes cooling of the main machine, returns the exchanged high-temperature fresh water to the fresh water cooling circulation cabin 1 from the water-cooling heat exchanger 4, atomizes the high-temperature fresh water carrying the heat in the fresh water cooling circulation cabin 1 through a water mist spray head 7, and fully dissipates heat.
The fresh water cooling circulation cabin 1 is open, which is helpful for heat dissipation, and the low-temperature fresh water after heat dissipation is re-entered into the cooling flow, thus realizing closed circulation type fresh water cooling.
Under the condition that the standby fresh water is sufficient, the high-temperature fresh water after heat exchange can be subjected to waste heat recovery or supplied to a domestic water system to be used as domestic-supported hot water.
In this embodiment, the water-cooling heat exchanger 4 is provided with a water inlet and a water outlet of fresh water cooling water and an inlet and an outlet of coolant, wherein the water inlet and the outlet of the fresh water cooling water are connected with the cooling pipeline system 6, and the inlet and the outlet of the coolant are connected with the cooling system in the main machine.
Embodiment two:
referring to fig. 3-7, the closed-loop circulation type fresh water cooling system for the ocean platform host machine in the high turbidity ocean area comprises a fresh water cooling circulation bin 1, a main cooling circulation pump 2 and a water cooling heat exchanger 4 which are sequentially connected through a cooling pipeline 6, wherein the main cooling circulation pump 2 is connected with a standby cooling circulation pump 3 in parallel.
Two pipelines are arranged in the water-cooling heat exchanger 4, one pipeline is communicated with the cooling pipeline 6, and the other pipeline is communicated with a host internal cooling system of the ocean platform main generator set 5.
The fresh water cooling circulation bin 1 is provided with a water inlet 61 at the upstream and a water outlet 62 at the downstream, and the water inlet 61 and the water outlet 62 are connected with the cooling pipeline 6.
The cooling pipeline 6 at the upstream of the fresh water cooling circulation bin 1 is connected with a plurality of water mist spray heads 7 after entering the fresh water cooling circulation bin 1, and the water mist spray heads 7 are positioned at the upper part of the fresh water cooling circulation bin 1.
The fresh water cooling circulation bin 1 is divided into an atomization bin 11, a cooling bin 12 and a water collection bin 121 from top to bottom;
The water mist spray head 7 is positioned in the atomization bin 11, and the atomization bin 11 is an empty bin for accommodating the water mist spray head 7 to work, so that sufficient atomization space exists for water sprayed out of the water mist spray head 7, and the water mist spray head 7 is fully atomized;
the cooling bin 12 is used for installing cooling fins 8, and the cooling fins 8 are vertically and criss-cross arranged in the cooling bin 12 to form a grid shape so as to increase the contact area and fully cool.
The tail ends of the cooling fins 8 extend out of the bin wall of the cooling bin 12, and the cooling fins 8 are welded and connected with the bin wall in a sealing manner, so that the cooling fins 8 have a better heat dissipation effect.
The cooling fin 8 is made of heat conducting materials including copper, aluminum, graphene and the like.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
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| CN202110595808.9A CN115405412B (en) | 2021-05-29 | 2021-05-29 | Closed-loop circulating type fresh water cooling system for ocean platform host machine in high turbidity sea area |
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| CN202110595808.9A CN115405412B (en) | 2021-05-29 | 2021-05-29 | Closed-loop circulating type fresh water cooling system for ocean platform host machine in high turbidity sea area |
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| CN112746890A (en) * | 2019-10-31 | 2021-05-04 | 中石化石油工程技术服务有限公司 | Fresh water cooling circulation cabin of ocean platform |
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| CN214944556U (en) * | 2021-05-29 | 2021-11-30 | 中石化石油工程技术服务有限公司 | High-turbidity sea area ocean platform host closed-loop circulating type fresh water cooling system |
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| US4836123A (en) * | 1988-04-07 | 1989-06-06 | Yamaha Hatsudoki Kabushiki Kaisha | Compact motor/generator set for providing alternating current power to a marine craft |
| CN105781711B (en) * | 2014-12-26 | 2018-05-11 | 中石化胜利石油工程有限公司钻井工艺研究院 | A kind of ocean platform seawater cooling cycle cabin |
| CN106401741A (en) * | 2016-11-29 | 2017-02-15 | 王良 | Internal combustion generating set capable of desalting seawater |
| KR101915579B1 (en) * | 2018-03-23 | 2018-11-06 | 한국산업기술시험원 | Combined Water and Power System |
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| CN214944556U (en) * | 2021-05-29 | 2021-11-30 | 中石化石油工程技术服务有限公司 | High-turbidity sea area ocean platform host closed-loop circulating type fresh water cooling system |
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