The Method for Establishing Automatic Piping Model in Heat Exchanger Design

Abstract

The invention discloses a method for building an automatic piping model in heat exchanger design. According to the method, parameters required by piping are determined according to acquired basic data of a heat exchanger, and the perpendicular distance between the center of the heat exchanger and a partition board groove is calculated; the position of the partition board groove is calculated according to whether grids are continuous; a primary piping model is built, corresponding mathematical models are abstracted according to different heat exchange tube arrangement modes, and pipe arrangement is conducted according to the abstracted mathematical models in the quadrant covered by the pipe pass based on selected split-ranging arrangement form features; automatic check and adjustment of the primary piping model are conducted, an optimal structure is obtained, and the built optimal universal automatic piping model is output. According to the method, operation is easy, the algorithm is simple, and universality is high; the universal automatic piping model from low pipe pass to high pipe pass is built based on the method combining numerical analysis with geometric figures, unlimited fitting optimization is conducted, and piping accuracy is improved greatly.

Description

technical field [0001] The invention relates to the field of computer-aided design of chemical engineering, in particular to a design method for establishing an automatic pipe layout model in the design of heat exchangers. According to the basic parameters of the heat exchanger, heat exchangers for floating head type, fixed tube sheet type and U-shaped tube type are obtained. Auto-routing model for low-to-high-level piping design of the machine. Background technique [0002] In the petrochemical industry, heat exchangers are commonly used energy exchange equipment. In the design process of the heat exchanger, the arrangement of the heat exchange tubes is a relatively important link. The accuracy of the tube arrangement directly determines the heat exchange effect of the heat exchanger. The establishment of baffles and support plates is also closely related to the arrangement of tubes. The arrangement of pipes is a very cumbersome work. Designers often arrange pipes manuall...

AI Technical Summary

Problems solved by technology

The arrangement of pipes is a very cumbersome work. Designers often arrange pipes manually based on experience. First, they estimate the pipe arrangement according to empirical values, and then perform multiple trial calculations and make modifications to the drawings, especially when laying out pipes for high processes. , it is easy to cause large errors and greatly reduce the accuracy

Therefore, this traditional design mode is labor-intensive, time-consuming, and less accurate.

[0003] In the design of heat exchanger pipe layout, after searching the existing literature, it is found that the model design for pipe layout in the existing literature is not accurate and simple enough, and the grid discontinuity is not considered, and after the pipe layout Basically, the close relationship between the tube arrangement and the baffles and support plates is not considered

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