Segmented adjustment outlet guide vane for improving variable-working-condition performance of air compressor and adjusting mechanism of segmented adjustment outlet guide vane
A technology of segmented adjustment and outlet guide vanes, which is applied in the directions of machines/engines, components of pumping devices for elastic fluids, mechanical equipment, etc., which can solve the problem of large deviation of the outlet airflow from the axial direction.
Pending Publication Date: 2018-02-23
SHANGHAI ELECTRIC GAS TURBINE CO LTD
View PDF11 Cites 14 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the above-mentioned guide vanes deviate too much from the axial direction when the outlet airflow is close to extreme conditions.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0047] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same time, terms such as "upper", "lo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a segmented adjustment outlet guide vane for improving the variable-working-condition performance of an air compressor. The guide vane comprises an inlet adjustable segment, a middle fixed segment and an outlet adjustable segment which are sequentially arranged in the flow direction of an air flow; a first swinging pivot is arranged at one end, close to the middle fixed segment, of the inlet adjustable segment; the inlet adjustable segment can rotate around the first swinging pivot; a second swinging pivot is arranged at one end, close to the middle fixed segment, of theoutlet adjustable segment; and the outlet adjustable segment can rotate around the second swinging pivot. The invention further provides an adjusting mechanism of the guide vane. The position of theoutlet guide vane can be adjusted. By the aid of the outlet guide vane and the adjusting mechanism, on one hand, the inlet attack angle is controlled through adjustment of the inlet adjustable segment, on the other hand, the outlet air flow direction and speed are controlled through adjustment of the outlet adjustable segment, besides, the vane profile line can be smooth as much as possible in thethree-segment adjustment manner, the air flow vortex production probability is reduced, and thus the loss is reduced.
Description
technical field [0001] The invention relates to the field of gas turbine compressors, in particular to a section-adjustable outlet guide vane and a guide vane adjustment mechanism for improving the variable working condition performance of the compressor. Background technique [0002] At present, mainstream advanced high-efficiency compressors are developing in the direction of high-performance technologies such as high pressure ratio, large flow rate, and wide operating range. The requirements for the safe and stable operation of the blades, the range of attack angles, the uniformity of outlet airflow, and the minimization of blade losses are getting higher and higher. On the one hand, the change of the angle of attack under variable working conditions is too large, which will cause the flow inside the blade to stall, resulting in a sudden drop in performance such as compressor efficiency; If the airflow deviates too much from the axial direction, the loss will increase; se...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/46F04D29/56
CPCF04D29/462F04D29/563
Inventor 赵连会陈挺何磊
Owner SHANGHAI ELECTRIC GAS TURBINE CO LTD