A Total Temperature Leaf Probe
A probe and blade technology, applied in the application of thermometers, thermometers, temperature measurement of moving fluids, etc., can solve the problem that affects the measurement accuracy of the total temperature data of the test piece, and the total temperature measurement device cannot fully measure the rotor outlet or interstage. Total temperature distribution and other issues, to achieve the effect of short measurement time, less interference, and reduction of total temperature measurement error
Active Publication Date: 2020-11-17
BEIHANG UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The technical problem to be solved by the present invention is: aiming at the problem that the existing total temperature measuring device cannot comprehensively measure the real total temperature distribution at the rotor outlet or between stages, which affects the measurement accuracy of the total temperature data of the test piece, a total temperature vane type is invented. The probe, compared with the existing total temperature measuring device, can accurately and comprehensively measure the total temperature distribution at the rotor outlet or between stages, and improve the measurement accuracy of the total temperature data of the test piece
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
[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 1 As shown, a total temperature leaf-type probe is introduced in this embodiment, which includes a stagnation cover (1), lead wires (2), blades (3), heat insulation ring (4), and a temperature sensor (5); The stop cover (1) and the temperature sensor (5) are fixed near the leading edge of the blade (3), the axial direction of the stagnation cover (1) faces the expected incoming flow direction, there are 5 measuring points on the blade (3), and the temperature sensor ( 5) The head is covered with a heat insulating ring (4), and the stagnation cover (1) is symmetrically opened with two outflow holes (6) on the left and right sides, the lead wire (2) is fixed in the blade (3), and is connected from The root of the blade (3) is drawn out.
[0028] The outer diameter of the stagnation cover (1) is 2.5 mm, the inner diameter...
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
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the technical field of temperature testing, and discloses a total temperature leaf type probe, including a temperature sensor, a lead wire, a stagnation cover, a heat insulation ring and blades, each blade has at least 5 measuring points, a stagnation cover and a temperature sensor. The sensor is fixed near the front edge of the blade, the axial direction of the stagnation cover is facing the expected incoming flow direction, the head of the temperature sensor is covered with a heat insulation ring, and two outflow holes are symmetrically opened on the left and right sides of the stagnation cover, and the lead wires are fixed on the on the surface of the blade or within the blade, and emerges from the root of the blade. Compared with the existing total temperature probe, the present invention does not require a probe pole, and can simultaneously measure the multi-point total temperature between the blade rows, and the measurement time is short. Compared with the existing total temperature leaf type probe, each of the present invention The measuring points and the axial direction of the stagnation cover are not the same, and they are respectively facing the expected incoming flow direction, which can reduce the total temperature measurement error of the probe, and can more accurately and comprehensively measure the total temperature of the turbomachinery rotor outlet or interstage along the blade height direction Distribution, improve the measurement accuracy of the total temperature data.
Description
technical field [0001] The invention belongs to the technical field of temperature testing, and relates to a flow steady-state total temperature measuring device, in particular to a total temperature vane probe, which is suitable for measuring the distribution of the total temperature at the outlet of a turbomachinery rotor or between stages along the blade height direction. [0002] Compared with the existing total temperature measuring device, the present invention does not need a probe rod, can simultaneously measure the total temperature of multiple points between the blade rows, and the measurement time is short. Compared with the existing total temperature leaf type probe, the present invention At each measuring point, the axial direction of the stagnation cover is not the same, and they are respectively facing the expected incoming flow direction, which can reduce the total temperature measurement error of the probe, and can more accurately and comprehensively measure th...
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 Patents(China)
IPC IPC(8): G01K13/02G01K13/024
CPCG01K13/02G01K13/024
Inventor 马宏伟金超王昱坤
Owner BEIHANG UNIV