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Automatic generation method of cable bridge

An automatic generation, cable tray technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as cable tray waste, and achieve the effect of solving waste problems and avoiding errors and waste.

Active Publication Date: 2012-06-13
POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the increasingly higher requirements for cost control and construction and installation, it is required to accurately design the specific number of cable trays. At present, there is a lack of a method that can accurately calculate the width, number of layers, and actual construction process of cable trays passing through each section of the path. A design method that can completely solve the problem of cable tray waste due to the load level of the cable tray

Method used

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  • Automatic generation method of cable bridge
  • Automatic generation method of cable bridge
  • Automatic generation method of cable bridge

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The method for automatically generating cable trays in this embodiment is applied in a power plant to generate a design drawing and a list of materials for cable trays in a certain area of ​​the main powerhouse. The flow chart of its operation steps is as follows figure 1 shown.

[0032] This method is based on thermal control design technology and computer technology, with EXCEL VBA as the design platform, and specifically includes the following steps:

[0033] a. In the computer system, define the conversion table of cable specifications, cross-sectional area, and weight per unit length. As shown in Table 1, not all models are listed in the table, but only the cable models used in the example are listed. The calculation method for the cross-sectional area of ​​the cable is to calculate the area of ​​a square with the diameter of the cable as the side length. Schematic diagram of the arrangement of cables in the bridge frame in actual engineering. The actual shape o...

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Abstract

The invention discloses an automatic generation method of a cable bridge based on an EXCELVBA (visual basic for applications) technology and computer aided drawing. The method comprises the following steps: a, defining a weight conversion table of specification, cross area and unit length of a cable in a computer system; b, inputting a cable list and a routing table into the computer system; c, calculating the cable cross area capacity and weight of each branch section according to the cable list and the routing table; d, defining the cable cross area of a single-layer bridge to obtain the number of bridge layers of each branch section; and e, generating a material list, a cable bridge diagram, a cable passage trending schematic diagram and a cable network node diagram according to the number of bridge layers in the step d. According to the method, the cable bridge diagram and the material list can be generated automatically, so that cable construction and design checking are facilitated.

Description

technical field [0001] The invention belongs to the field of cable bridge design, in particular to a method for automatically generating a bridge design drawing and a material list of cables in a power plant. Background technique [0002] The design of cable trays in thermal power plants has always been a difficult problem for thermal control and electrical professionals. The traditional cable tray design method is to first plan the direction of the cable channel, estimate the number of passing cables, and estimate the required number of tray layers and width based on the estimated number of cables. [0003] In the existing cable tray design method, the number of trays is estimated based on experience, and the accuracy often depends on the experience of the designer, but even experienced designers cannot accurately calculate the exact number of cables passing through a certain section of tray. Therefore, it is impossible to count and calculate the specific number of layers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 田松胡立国杨金芳张益国
Owner POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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