Integrated Seawater Circulation System for Cooling and Scrubbing
Solution Overview
Problem
Current seawater circulation systems require multiple sea chests and discharge pipes, as well as separate dilution water pumps, to manage seawater for cooling heat generation bodies and exhaust gas processing, leading to increased costs and space usage, while also posing environmental risks due to acidic seawater discharge.
Innovation Solution
A seawater circulation system that utilizes a single sea chest and discharge pipe to supply seawater for both cooling and exhaust gas processing, incorporating a stirring mechanism to mix and neutralize acidic seawater without a separate dilution water pump, allowing for efficient sulfur oxide removal and temperature reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sea chests and discharge pipes are installed to separate cooling water supply and exhaust gas processing, then the functional reliability is improved, but the device complexity and installation cost increase
Solution Approach 1:
The patent merges the cooling water supply function and exhaust gas processing function into a single integrated seawater circulation system. The sea chest and discharge pipe that were previously separate are combined into one unified system that serves both the heat generation body cooling and the scrubber exhaust gas processing, thereby reducing device complexity while maintaining functional reliability through proper flow control and mixing mechanisms.
Solution Approach 2:
The single seawater circulation system is designed to perform multiple functions simultaneously: it provides cooling water to the heat generation body, supplies seawater to the scrubber for exhaust gas processing, and handles the discharge of processed seawater. This multi-functional design eliminates the need for separate dedicated systems for each function, reducing overall system complexity.
2Object-affected harmful factors
If a separate dilution water pump is installed to neutralize acidic seawater, then the environmental safety is improved, but the device complexity and operation cost increase
Solution Approach 1:
The patent combines the dilution function with the existing seawater circulation system by introducing the cooled seawater from the heat generation body into the acidic seawater stream from the scrubber. This merging of flows achieves neutralization and dilution of acidity without requiring a separate dilution water pump, thereby maintaining environmental safety while reducing device complexity.
Solution Approach 2:
The system uses its own cooled seawater output to achieve the dilution and neutralization function that would otherwise require a separate pump system. The cooled seawater from the heat generation body serves dual purposes: cooling the engine and simultaneously diluting the acidic exhaust gas processing seawater, making the system self-sufficient and eliminating the need for additional pumping equipment.
3Temperature
If a separate sea chest is installed for cooling water supply, then the cooling performance is improved, but the space requirement and installation cost increase
Solution Approach 1:
The single sea chest is designed to serve multiple functions: it supplies seawater for cooling the heat generation body and also supplies seawater for the scrubber exhaust gas processing. This multi-functional design eliminates the need for a separate sea chest dedicated to cooling, thereby reducing the space requirement while maintaining adequate cooling performance through proper flow distribution.
Solution Approach 2:
The patent merges the cooling water supply function with the exhaust gas processing seawater supply function into a single sea chest. By integrating these functions, the system reduces the total space required for seawater storage and distribution while maintaining the cooling performance needed for heat generation body operation.
4Ease of operation
If strongly acidic high-temperature seawater is discharged directly into the sea, then the discharge simplicity is improved, but the environmental harm increases
Solution Approach 1:
The patent converts the harmful acidic and high-temperature seawater discharge into a beneficial process by using the cooled seawater from the heat generation body to dilute and neutralize the acidic exhaust gas processing seawater. The cooling function that would otherwise be wasted is now utilized to neutralize the acid, transforming a harmful discharge into a environmentally safe output while maintaining operational simplicity.
Solution Approach 2:
The cooled seawater from the heat generation body acts as an intermediary substance that neutralizes the acidic exhaust gas processing seawater before discharge. This intermediary flow mixes with the acidic seawater, reducing its acidity and temperature, thereby enabling simple direct discharge into the sea without environmental harm.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces installation costs and space requirements by using a single sea chest and eliminates the need for a separate dilution water pump, while minimizing environmental impact by lowering seawater acidity and temperature through efficient mixing and discharge.
Implementation Method 1
a cooling part coupled to the sea chest to receive the seawater from the sea chest, and coupled to a heat generation body to lower a temperature of the heat generation body through heat exchange
Implementation Method 2
a scrubber part for processing an exhaust gas generated in a ship
Implementation Method 3
a stirring part coupled to the first discharge pipe part and the second discharge pipe part to receive and stir the seawater discharged from the first discharge pipe part and the second discharge pipe part
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to a seawater circulation system, and more specifically, to a seawater circulation system having a seawater supply function and a seawater stirring function for an exhaust gas processing apparatus and for the cooling of a heating element. One embodiment of the present invention provides a seawater circulation system comprising: a sea chest; a cooling part which is coupled to the sea chest, receives seawater from the sea chest, is coupled to a heating element, and lowers the temperature of the heating element by heat exchange; a scrubber part for processing exhaust gas; a first discharge pipe part which is coupled to the cooling part, and receives seawater discharged from the cooling part; a supply pipe part which supplies, to the scrubber part, some or all of the seawater discharged from the cooling part or the first discharge pipe part; a second discharge pipe part which receives seawater discharged from the scrubber part; and a stirring part which receives seawater discharged from the first discharge pipe part and the second discharge pipe part, and stirs the seawater.