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Welding and assembling method of compressor shell

A compressor and casing technology, applied in the field of compressors, can solve the problems of long wooden mold manufacturing cycle, poor generality of the casing, existence of casting pores, etc., to avoid internal defects and uneven appearance, reduce the total processing height, The effect of shortening the manufacturing cycle

Active Publication Date: 2012-07-25
长沙赛尔透平机械有限公司
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  • Abstract
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Problems solved by technology

[0010] The present invention aims to provide a welding method for compressor casings, which can solve the problems of long wooden mold manufacturing cycle, high storage cost, poor versatility and problems of casting and welding compressor casings in the prior art. Casting porosity, sand inclusion defects and other technical problems

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  • Welding and assembling method of compressor shell
  • Welding and assembling method of compressor shell
  • Welding and assembling method of compressor shell

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Embodiment Construction

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0034] The invention provides a welding method for a casing of a compressor, which is especially suitable for welding the casing of a single-shaft isothermal centrifugal compressor. figure 1 It is a sectional structure view of the lower casing of the casing of the preferred embodiment of the present invention split along the horizontal direction, figure 2 It is a shell sectional view of the shell of the preferred embodiment of the present invention split along the vertical direction, below, in conjunction with figure 1 and figure 2 , to explain the welding method:

[0035] The welding method of the compressor casing of the present invention mainly comprises the following steps:

[0036] (1) The first part is assembled and welded in the way of s...

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Abstract

The invention provides a welding and assembling method of a compressor shell, comprising the following steps of: assembling and welding a first part in a split assembling and welding way; casting a second part in an integrally forming casting way; and welding the first part and the second part. The compressor shell is divided into the first part and the second part, wherein the first part is welded in the split assembling and welding way without adopting a wood model with huge volume. Compared with the prior art, the invention can obviously shorten the manufacturing period of the compressor shell, save the cost and reduce the occupying area of wood model storage, thereby enhancing the manufacturing precision of the compressor shell.

Description

technical field [0001] The invention relates to the field of compressors, more specifically, to a compressor casing and a welding method for welding the casing. Background technique [0002] Existing single-axis isothermal compressors use casting casings. Casting is a special process, and it is difficult to control the quality. Every process such as design, process, parting, wooden mold, modeling, consolidation, pouring, and boxing must be refined. Any negligence may cause casting defects or even scrapping. [0003] For example, in the casting process, putting in a new wooden mold requires about 70-120m 3 High-quality pine wood will cause damage to forest resources, and the manufacturing cycle is long. It takes an average of two months to complete the wooden mold of a cabinet. Although a wooden mold can be reused, which can save costs for large batches, but for the production of small batches of casings, the cost will increase instead. In addition, wooden formwork is easy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02
Inventor 田国光范志强李勇吴小倩袁瑞生
Owner 长沙赛尔透平机械有限公司
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