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Water cooling structure for thermal insulation of wind tunnel balance

A wind tunnel balance and water-cooling technology, which is applied to the testing of machines/structural components, measuring devices, instruments, etc., can solve problems such as inability to drill holes and implementation of schemes, achieve remarkable heat insulation effects, improve water cooling effects, increase The effect of a large flow area

Active Publication Date: 2018-10-23
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This design is an excellent design in theory, but in practical engineering applications, except for very few extra-large balances that can be equipped with water channels in the balance, ordinary rod balances cannot be drilled due to the size of the measuring element. Hole
The solution in this patent may not be implemented

Method used

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  • Water cooling structure for thermal insulation of wind tunnel balance
  • Water cooling structure for thermal insulation of wind tunnel balance

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Embodiment Construction

[0024] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0025] like Figure 1-2 As shown, an example is given to explain the water cooling device for heat insulation protection of the wind tunnel balance. According to the estimation of the test aerodynamic load, a pole with a diameter of 36mm is designed, and the center of the pole is provided with a through hole with a diameter of 8mm.

[0026] First, a water inlet is provided at one end of the pole. The water inlet is arranged along the axis of the pole, and the water inlet does not coincide with the axis of the pole, but is parallel to the axis. The diameter of the water inlet is set to 4mm. The other end of the strut corresponding to the water inlet is set as a water outlet, and the axis of the water outlet coincides with the water inlet. Two such water inlets and outlets are arranged on the w...

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Abstract

The invention discloses a water cooling structure for thermal insulation of a wind tunnel balance. The water cooling structure comprises a support lever and a lever balance connected with the supportlever. The lever balance is sleeved with a water cooling sleeve. Two water paths are arranged in the support lever in the axial direction. The non-measuring component area of the lever balance is provided with two water paths corresponding to the two water paths of the support lever. The two water paths on the lever balance are connected to the water cooling sleeve through a bellows. The cold water circulates in the water paths. The water cooling structure can simultaneously cools the lever balance and the support lever by water, and has a protective effect on the heat conduction and the heatradiation which affect the temperature change of the lever balance. The method for water cooling the outer surface of the support lever is obviously better than a traditional water-cooling ring methodin thermal insulation effect.

Description

technical field [0001] The invention belongs to the technical field of aerodynamic force measurement in aerospace dynamometer experiments, and in particular relates to the field of thermal insulation and protection of hypersonic wind tunnel test balances. Background technique [0002] The thermal insulation protection of the balance and the pole is of great significance in the wind tunnel force test. Especially in the hypersonic wind tunnel test, due to the high ambient temperature in the wind tunnel test section, the temperature effect of the balance is obvious, so it is particularly important to protect the balance and support rods from heat. There are three main sources of balance heat in the wind tunnel test: the first is the heat conduction between the model and the balance after the model is heated; the second is the heat conduction between the support rod and the balance after the support rod is heated; the third is the balance received Heat radiation. There are two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 王树民马涛胥继斌潘华烨张鑫向光伟贾巍王超刘文华张桂枝
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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