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Ship piping system design scheme verification method and system

A design scheme and verification method technology, applied in computer-aided design, design optimization/simulation, calculation, etc., can solve problems such as large amount of calculation, cumbersome formulas, time-consuming and labor-consuming, etc., achieve accurate calculation results, improve verification efficiency, Calculation of quick effects

Active Publication Date: 2018-03-20
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the long length of ship pipelines, many branches, and complex shapes, the formulas used for hydraulic calculations are cumbersome and require a large amount of calculations. Manual calculations are time-consuming and labor-intensive, and are prone to errors

Method used

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  • Ship piping system design scheme verification method and system
  • Ship piping system design scheme verification method and system
  • Ship piping system design scheme verification method and system

Examples

Experimental program
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Embodiment 1

[0060] The present invention provides a method and system for verifying a design scheme of a ship piping system. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. The logical sequence is shown in the flowchart, but in some cases, the steps shown or described may be performed in a different order than here.

[0061] The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Take running on a computer terminal as an example, figure 1 It is a hardware structure block diagram of a computer terminal of a verification method for a ship piping system design scheme according to an embodiment of the present invention. Such as figure 1 As shown, the computer terminal 100 may include one or more (only one is shown in the figure) processor 102 (the processor 102 may i...

Embodiment 2

[0093] Figure 5 It is a flowchart of a verification method for a ship piping system design scheme provided by an embodiment of the present invention, such as Figure 5 As shown, the verification method of the ship piping design scheme provided by this embodiment includes the following steps:

[0094] S201: Simplify the ship piping system into a network diagram including nodes and pipelines;

[0095] S202: Obtain the first resistance value of the pipeline where the end node is located and the second resistance value of the pipeline where the second end node is located in the network graph;

[0096] S203: Determine whether the error between the first resistance value and the second resistance value exceeds a preset threshold;

[0097] S204: If the error exceeds a preset threshold, adjust the first resistance value or the second resistance value according to the judgment result, and execute the judgment between the first resistance value and the second resistance value Whether the error...

Embodiment 3

[0103] Image 6 It is a flowchart of a verification method for a ship piping system design scheme provided by an embodiment of the present invention, such as Image 6 As shown, the verification method of a ship piping system design scheme provided by this embodiment can be realized by programming in languages ​​such as Visual Basic, Visual C++, Visual C#, JAVA, etc. This method is designed with function selection and parameter input interfaces for implementing the management Road resistance, flow and multi-branch piping system calculation problems. Among them, the calculation process of resistance is based on Bernoulli equation and Nicholas empirical formula. The calculation process of flow is based on the assumed initial flow to calculate the resistance value, and then calculate the resistance value with the given resistance value. In contrast, iteratively solve the true flow value. When calculating the multi-branch piping system, the software simplifies the complex piping sys...

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Abstract

The invention discloses a ship piping system design scheme verification method. The method includes the steps that a ship piping system is simplified into a network graph; a first resistance value anda second resistance value are acquired; whether or not the error between the first resistance value and the second resistance value exceeds a preset threshold value is judged; if yes, the first resistance value or the second resistance value is adjusted according to the judgment result, and the above-mentioned judgment step is executed again; if not, whether or not a penultimate tail end node isa head end node is judged; if yes, the actual flow value and the actual resistance value of the piping system are output; if not, the combination of a tail end node and the penultimate tail end node is used as a tail end node, and a new second resistance value is acquired. The invention further discloses a ship piping system design scheme verification system. By means of the method and system, parameterized calculation of the resistance and flow of the ship piping system is achieved, calculation is fast and accurate, and the calculation result can be used for assisting in piping system check and pump model selection.

Description

Technical field [0001] The invention relates to the technical field of ship design and manufacturing, and in particular to a method and system for verifying a ship piping design scheme. Background technique [0002] Ship piping system is a piping system that serves the entire ship, mainly including ballast water system, bilge water system, fire fighting system, breathable sounding system and domestic water system. At present, in the production design of ship piping systems, it is often encountered that the actual pressure and flow rate of the fluid in the pipeline cannot meet the design requirements, such as the working pressure is less than its working pressure or greater than its safe pressure. When designing ship piping system, it is necessary to verify the designed piping system in time to determine whether it can meet the design requirements. The traditional method can only manually calculate according to Bernoulli equation and Nicholas empirical formula to verify whether t...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2113/14G06F2119/06
Inventor 何春平赖国栋
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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