Diffuser positioning device
A technology of positioning device and diffuser, which is applied to components of pumping devices for elastic fluids, machines/engines, liquid fuel engines, etc., can solve the problem of poor gas turbine performance, reduced compressor efficiency, and inconvenient maintenance and replacement. and other problems, to achieve the effect of easy processing and assembly, convenient processing and low cost
Inactive Publication Date: 2019-04-16
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
If the layout and positioning methods are too complicated, the structural complexity of the gas turbine will be increased, making it difficult to overhaul and replace; if the layout is unreasonable or the positioning is inaccurate, the efficiency of the compressor will be reduced, the performance of the gas turbine will be deteriorated, and the safety will be difficult. Security and other issues
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[0035] The present disclosure provides a diffuser positioning device, including: an air intake receiver and a diffuser housing, the diffuser housing is placed in the air intake receiver and connected to the air intake receiver; the diffuser housing The body also includes: axial diffuser blades, which are evenly distributed in the axial direction on the diffuser shell, and are integrally connected with the diffuser shell; the axial diffuser blades are provided with positioning holes, which pass through the intake casing Positioning screw connection. The present disclosure is light in weight, simple in structure, low in processing cost, convenient for inspection and maintenance, and reduces the difficulty of processing and assembling the diffuser.
[0036] In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the following further describes the present disclosure in detail with reference to specific embodiments and drawings.
[0037]...
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Abstract
The invention provides a diffuser positioning device. The diffuser positioning device comprises an air inlet casing and a diffuser shell, the diffuser shell is arranged in the air inlet casing, and connected with the air inlet casing; the diffuser shell further comprises axial diffusionblades, the diffusionblades are evenly distributed on the diffuser shell in the axial direction, and integrally connected with the diffuser shell; and locating holes are formed in the axial diffusionblades, and thelocating holes are connected with the air inlet casing through locating screws. According to the diffuser positioning device, the weight is low, the structure is simple, the machining cost is low, repairing and maintenance are convenient, and the machining and assembling difficulty of a diffuser islowered.
Description
Technical field [0001] The present disclosure relates to the field of gas turbines, and in particular to a diffuser positioning device. Background technique [0002] The function of the diffuser is to partially convert the kinetic energy of the airflow at the outlet of the centrifugal impeller into potential energy, thereby further increasing the static pressure of the airflow, and at the same time turning the airflow from radial to axial, preparing for further combustion in the combustion chamber. The diffusion method is generally divided into bladed diffusion and bladeless diffusion. The bladeless diffusion structure is simple but the effect is poor. Generally speaking, leaf diffusion is the more common diffusion method at present. [0003] The vane diffuser usually has the following three structural forms: one is that the vane and the diffuser channel are integrally formed; the other is that the vane is processed separately, and then the vane is inserted into the wall blade hol...
Claims
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IPC IPC(8): F04D29/44F04D29/62F04D29/02
CPCF04D29/023F04D29/444F04D29/624F05D2300/121
Inventor 石书成张华良刘锡阳高庆吴世勋谭春青谢鹏福
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI