Airplane test liquid level measurement and control system

A control system and test liquid technology, applied in liquid level control, control/regulation system, aircraft component testing, etc., can solve problems such as the inability to realize low-temperature brine evacuation and filling functions, and achieve a smooth and applicable test process Wide range, effect of slowing down the flow speed

CN113932880AActive Publication Date: 2022-01-14CHINA AIRPLANT STRENGTH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-01-14

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Abstract

The invention discloses an airplane test liquid level measurement and control system, and belongs to the technical field of airplane test, the system comprises a liquid outlet pipe and a liquid return pipe which are arranged on a pipeline to be tested, a visual liquid barrel communicated with the liquid outlet pipe, and a liquid accumulation bag communicated with the liquid viewing barrel, the liquid outlet pipe is connected with a to-be-detected pipeline through a set of adjusting mechanisms used for adjusting the angle and position of the liquid outlet pipe, the liquid viewing barrel is arranged on one side of the liquid accumulation bag in an up-down sliding mode, a sliding rail is arranged on the outer side wall of the liquid accumulation bag, a sliding block arranged at the bottom of the liquid viewing barrel is in sliding connection with the sliding rail, and two sets of vertically-corresponding liquid viewing mirrors are arranged on the front face of the liquid viewing barrel. Two sets of capacitance liquid level meters are vertically and correspondingly arranged on the side face of the liquid viewing barrel, and the liquid viewing lens and the capacitance liquid level meters are arranged in a staggered mode. The liquid level can be accurately measured and controlled in time under the two working conditions of filling and emptying of the to-be-measured pipeline, the application range is wide, meanwhile, a part of secondary refrigerant can be stored in the liquid accumulation bag, the speed of the secondary refrigerant in the filling and emptying process can be reduced, and the whole process is more stable.
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Description

technical field

[0001] The invention relates to the technical field of aircraft testing, in particular to a liquid level measurement and control system for aircraft testing. Background technique

[0002] In the process of aircraft testing, it is necessary to adjust the experimental environment, especially the refrigeration system. Various refrigerants are often used in the refrigeration system, especially low-temperature refrigerants. However, low-temperature refrigerants will condense in extremely low-temperature environments. Once the low-temperature refrigerant condenses, it will cause blockage of the pipeline and bring safety hazards to the refrigeration system. Therefore, it is necessary to observe the liquid level of the low-temperature refrigerant in the pipeline in real time to judge whether the low-temperature refrigerant in the pipeline is completely discharged. empty and full.

[0003] Commonly used low-temperature refrigerants such as LM-8 glacial refrigerant wi...

Examples

Embodiment 1

[0032] like figure 1 As shown, the aircraft test liquid level measurement and control system includes a liquid outlet pipe 2 and a liquid return pipe 3 installed on the pipeline 1 to be tested, a sight liquid barrel 4 communicated with the liquid outlet pipe 2, and a liquid sight barrel 4 connected to each other. The connected effusion bag 5, the effusion bag 5 communicates with the liquid return pipe 3, the liquid outlet pipe 2 is connected to the pipeline 1 to be tested through a group of adjustment mechanisms 6 for adjusting its angle and position, and the end of the liquid outlet pipe 2 is provided with There is a set of hoses 7, the ends of the hoses 7 are bifurcated into a first hose 71 and a second hose 72, the first hose 71 is connected to the bottom of the sight barrel 4, and the second hose 72 is connected to the bottom of the effusion pack 5 Connection, the first flexible pipe 71 and the second flexible pipe 72 are provided with a valve 75, and the top of the liquid...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that there are 6 sets of fixing blocks 62 .

Embodiment 3

[0039] The difference between this embodiment and Embodiment 1 is that there are 7 sets of fixing blocks 62 .