Weld-free pot volute casing
a volute casing and weld-free technology, applied in the direction of machines/engines, stators, liquid fuel engines, etc., can solve the problems of increasing manufacturing costs and increasing manufacturing outlay, and achieve the effect of simple and inexpensive production and/or assembly
Inactive Publication Date: 2015-09-17
SIEMENS AG
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Benefits of technology
This patent text describes a method for making a pot-type volute casing for a gearbox connection without any weld seams. It also explains how to adjust the position of the pot-type volute casing relative to the gearbox by using a screw joint. This allows for better alignment and reduces the need for additional adjustment facilities, which can make turbomachines more efficient.
Problems solved by technology
In particular for the connection of the pressure connector pipe to the pot, it is however the case in the welded pot-type volute casing that cumbersome weld seam preparation is necessary, and also, said welded connection constitutes a weak point of the pot-type volute casing.
After the seam welding process, the pot-type volute casing must then be annealed into a low-stress state and then sandblasted, which further increases the manufacturing outlay and increases manufacturing costs.
Method used
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Embodiment Construction
[0061]Weld seam-free pot-type volute casing of block type of construction for a compressor stage in a geared compressor
[0062]FIG. 1 shows a longitudinal section through a part, illustrated in simplified form, of a compressor stage 18 of a geared compressor 10 having a weld seam-free pot-type volute casing 1 according to embodiments of the invention with a pot 2 produced from a blank 3 by a cutting machining process.
[0063]The compressor stage 18 has a rotor or pinion shaft 19 which rotates about an axis of rotation 22 and which is received in an axial bore 15 in the pot 2 and to one end of which, as illustrated, there is attached an impeller 20.
[0064]In the region in which the pinion shaft 19 enters the pot 2, on an axial face surface of the pot 2 at that location, there is arranged a gearbox connection 8, in the form of a collar 8, which is screwed (cf. screws 21) to the pot 2.
[0065]The impeller 20 is impinged on (axially) by a fluid 11 by way of an axial inflow 12, and said impelle...
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Abstract
A method for producing a pot for a pot volute casing for a turbo-motor, particularly for a compressor, and a pot volute casing for a turbo-motor is provided. According to the method for producing a pot for a pot volute casing, the pot is produced from a blank using a chip-removing machining method. The pot volute casing has a pot produced in accordance with the method for producing a pot for a pot volute casing.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to PCT Application No. PCT / EP2013 / 069171, having a filing date of Sep. 16, 2013, based on DE 101012218800.2 having a filing date of Oct. 16, 2012, the entire contents of which are hereby incorporated by reference.FIELD OF TECHNOLOGY[0002]The following relates to a method for producing a pot for a pot-type volute casing for a geared turbocompressor, and to a pot-type volute casing for a geared turbocompressor.BACKGROUND[0003]Compressors or fluid-compressing apparatuses are used in various industrial sectors for various uses which involve a compression of fluids, specifically (process) gases. Known examples of these are turbocompressors in mobile industrial applications, for example in exhaust-gas turbochargers or in jet engines, or in static industrial applications, such as geared compressors or geared turbocompressors for air separation.[0004]In the case of a turbocompressor of said type—which operates con...
Claims
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IPC IPC(8): F04D29/42F04D25/16F04D29/62
CPCF04D29/4206F04D25/163F04D29/624Y10T29/49236
Inventor WEULE, JAN
Owner SIEMENS AG