LS-DYNA based method for optimally designing layout of storage tank area of chemical industry park

Abstract

An LS-DYNA based method for optimally designing a layout of a storage tank area of a chemical industry park. The present invention relates to an LS-DYNA based method for optimally designing a layout of a storage tank area of a chemical industry park. An objective of the present invention is to solve the problems that the existing design method is poor and even unsuccessful in design, and basic materials may have expired, and actual on-site conditions have changes and the like. The method is specifically implemented according to the following steps: 1. defining a constraint condition of selecting a storage tank area of a chemical industry park as a model parameter of numerical simulation, and then generating a keyword k file; 2. inputting the keyword k file into LS-DYNA software to perform resolution so as to obtain a d3plot result file; 3. obtaining a breakage effect value of a whole explosion course; and 4. obtaining a layout manner with a smallest breakage effect value of the whole explosion course of the storage tank area, so as to obtain an optimized design scheme. The method provided by the present invention is applied to the field of layout optimization of the storage tank area of the chemical industry park.

Description

technical field

[0001] The invention relates to a method for optimizing the layout design of a storage tank area in a chemical industry park based on LS-DYNA. Background technique

[0002] The storage tank area is a storage tank area composed of one or several industrial storage tanks. When an explosion accident occurs, strong energy releases or produces strong shock waves and bubble pulsation effects, which is very easy to damage the personnel, equipment and surrounding people in the area. Buildings deal devastating damage. The energy and shock waves generated by a local explosion in a storage tank area composed of multiple storage tanks are likely to cause a catastrophic chain effect of domino accidents, causing explosions and losses in a wider range. Therefore, the layout design of the storage tank farm should be adjusted according to the changing factors such as the size, quantity, and medium type of the storage tanks in the storage tank farm. If the design is improper ...

Examples

specific Embodiment approach 1

[0017] Specific implementation mode one: combine figure 1 , figure 2 , image 3 Describe this embodiment, a kind of method of this embodiment based on LS-DYNA to the layout optimization design of chemical industrial park storage tank area, specifically prepare according to the following steps:

[0018] Step 1. Select the storage tank area of ​​the chemical industry park as the prototype of the numerical simulation, define the constraints of the selected storage tank area of ​​the chemical industry park as the model parameters of the numerical simulation, and then the Hypermesh software generates a keyword k file, which contains the parameters of the storage tank area the modeling command;

[0019] Step 2: Input the parametric modeling command of the storage tank area contained in the keyword k file into the LS-DYNA software for solution, and obtain the d3plot result file through numerical simulation calculation;

[0020] Step 3. Use the LS-DYNA post-processor to post-proce...

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the constraint conditions of the storage tank area in the chemical industry park in step 1 are the size of the storage tank area, the size of the storage tank, the material of the storage tank, the medium of the storage tank, the energy of the explosion source, The distance and relative position between storage tanks.

[0023] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the damage effect value of the storage tank area in the chemical industrial park described in step 3 in the whole explosion process includes the damage effect value when the storage tank area of ​​the chemical industrial park exploded for the first time and the damage effect value that triggers the domino chain effect caused by the secondary explosion.

[0025] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

technical field

[0001] The invention relates to a method for optimizing the layout design of a storage tank area in a chemical industry park based on LS-DYNA. Background technique

[0002] The storage tank area is a storage tank area composed of one or several industrial storage tanks. When an explosion accident occurs, strong energy releases or produces strong shock waves and bubble pulsation effects, which is very easy to damage the personnel, equipment and surrounding people in the area. Buildings deal devastating damage. The energy and shock waves generated by a local explosion in a storage tank area composed of multiple storage tanks are likely to cause a catastrophic chain effect of domino accidents, causing explosions and losses in a wider range. Therefore, the layout design of the storage tank farm should be adjusted according to the changing factors such as the size, quantity, and medium type of the storage tanks in the storage tank farm. If the design is improper ...

Examples

specific Embodiment approach 1

[0017] Specific implementation mode one: combine figure 1 , figure 2 , image 3 Describe this embodiment, a kind of method of this embodiment based on LS-DYNA to the layout optimization design of chemical industrial park storage tank area, specifically prepare according to the following steps:

[0018] Step 1. Select the storage tank area of ​​the chemical industry park as the prototype of the numerical simulation, define the constraints of the selected storage tank area of ​​the chemical industry park as the model parameters of the numerical simulation, and then the Hypermesh software generates a keyword k file, which contains the parameters of the storage tank area the modeling command;

[0019] Step 2: Input the parametric modeling command of the storage tank area contained in the keyword k file into the LS-DYNA software for solution, and obtain the d3plot result file through numerical simulation calculation;

[0020] Step 3. Use the LS-DYNA post-processor to post-proce...

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the constraint conditions of the storage tank area in the chemical industry park in step 1 are the size of the storage tank area, the size of the storage tank, the material of the storage tank, the medium of the storage tank, the energy of the explosion source, The distance and relative position between storage tanks.

[0023] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the damage effect value of the storage tank area in the chemical industrial park described in step 3 in the whole explosion process includes the damage effect value when the storage tank area of ​​the chemical industrial park exploded for the first time and the damage effect value that triggers the domino chain effect caused by the secondary explosion.

[0025] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

Images