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Splitting machining method for shells of horizontal splitting type centrifugal compressor case

A centrifugal compressor and horizontal split technology, which is applied in the field of compressor shell processing, can solve the problems of tolerance and inability to guarantee the machining dimensional accuracy of each part of the shell, and achieve the goal of solving the limited load-bearing and ensuring the accuracy of machining dimensions and geometric tolerances Effect

Active Publication Date: 2018-09-04
SHENYANG TURBO MASCH CORP
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Problems solved by technology

[0003] The invention provides a split processing method for the casing shell of a horizontally split centrifugal compressor to solve the problem that the machining dimensional accuracy of each part of the casing cannot be guaranteed during the processing of the casing shell of a large horizontally split centrifugal compressor. and technical issues requiring geometric tolerances

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  • Splitting machining method for shells of horizontal splitting type centrifugal compressor case
  • Splitting machining method for shells of horizontal splitting type centrifugal compressor case

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Embodiment Construction

[0038] see figure 1 According to an embodiment of the present invention, a split processing method for a casing shell of a horizontally split centrifugal compressor includes the following steps:

[0039] Step 1, rough machining the shell of the centrifugal compressor.

[0040] see figure 2 , the rough processing includes: the first scribing of the upper casing 1 and the lower casing 2 of the centrifugal compressor casing by gantry milling, checking the size margins of the upper casing 1 and the lower casing 2, and the upper casing 1 and the end faces of the sealing area of ​​the lower casing 2 as a reference basis, the marking process draws the horizontal mid-section processing lines of the upper casing 1 and the lower casing 2 in the casing of the centrifugal compressor, and the inlet and outlet of the lower casing 2 Air outlet flange plane processing line, outrigger plane processing line, check the bearing area, sealing area, abdominal cavity axial and radial dimensions, ...

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Abstract

The invention provides a splitting machining method for shells of a horizontal splitting type centrifugal compressor case. The method includes the steps that rough machining is performed on the shellsof the centrifugal compressor case; stress relieving, shot blasting, shaping and paint spraying treatment is performed on the shells of the centrifugal compressor case; the upper and lower shells ofthe centrifugal compressor case are independently subjected to splitting semi-finish machining; and the upper and lower shells of the centrifugal compressor case are independently subjected to splitting finish machining. According to the splitting machining method for the shells of the horizontal splitting type centrifugal compressor case, the problem that load borne by a machining device is limited is solved, and the machining dimension and the geometric tolerance precision of each part of the shells of the case can also be guaranteed.

Description

technical field [0001] The invention relates to the technical field of compressor casing processing, in particular to a split processing method for a horizontally split centrifugal compressor casing shell. Background technique [0002] Large-scale horizontally split centrifugal compressor casings have the characteristics of heavy weight, high total height of the upper and lower casings, and high geometric tolerance requirements. Taking the 2MCL1500 centrifugal compressor model as an example, the compressor casing is 5300mm long and 4140mm wide. The height is 4800mm (the height of the lower casing is 3000mm, the height of the upper casing is 1800mm), and the total weight is 101t (the upper casing is 45t, the lower casing is 56t). Compared with ordinary small horizontally split centrifugal compressor casings, this type of casing has low casing strength, thin walls and large volume, and is prone to deformation during processing. In the case of the processing capacity of the ex...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 刘姝鑫舒鑫王强郭峰刘铎宋健金星范海宇
Owner SHENYANG TURBO MASCH CORP
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