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Voltage stabilizing test warehouse

A test chamber and chamber body technology, used in engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as temperature instability, poor accuracy and stability, and inability to correctly evaluate the working state of the test piece. The effect of temperature and wind speed stabilization

Inactive Publication Date: 2013-03-20
HARBIN DONGAN ENGINE GRP
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  • Abstract
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  • Application Information

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Problems solved by technology

Under normal circumstances, a low-temperature test environment is established by means of refrigerant exchange technology, gas external expansion, and temperature drop. However, if this low-temperature environment is used directly, there will be temperature instability, large wind speed fluctuations, and flames when the igniter is ignited. The shortcomings of being unobservable and difficult to monitor the test process lead to large errors in the test process, poor accuracy and stability, and cannot correctly evaluate the actual working status of the test piece. Therefore, it is necessary to establish a new test chamber to ensure

Method used

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  • Voltage stabilizing test warehouse

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Embodiment Construction

[0008] As shown in the figure, the test chamber includes a chamber body 1, an air induction section 4, and an exhaust air section 3. One end of the air induction section 4 is connected to the chamber body 1, and the other end is connected to the main regulating butterfly valve behind the expander. There is an air-inducing section 5 for stepless mixing of hot air in proportion, and a flow-stabilizing section 6 is set in the air-introducing section close to the warehouse body. The flow-stabilizing section 4 is a straight pipe whose diameter and length are matched in proportion to 3 to 8 times. , the bin body 1 is a sealed structure and is provided with a bin door 2, a temperature sensor 9 is arranged in the bin body 1, the temperature sensor is connected to a controller, and the controller is connected to a hot air valve 10, and a resistant valve is installed on both sides of the bin body A high-temperature glass observation window 8 is provided with a video monitoring system 7 o...

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Abstract

The invention relates to a voltage stabilizing test warehouse, which comprises a warehouse body, an induced air segment and an air exhaust segment, wherein one end of the induced air segment is connected with the warehouse body, and the other end is connected with a rear main adjusting butterfly valve of an expander; an air entraining segment by stepless bleeding hot-air in proportion is arranged on the induced air segment, and a current stabilizing segment is arranged at the induced air segment close to the warehouse body; the warehouse body adopts a sealing structure, and is provided with a warehouse door; a temperature sensor is arranged in the warehouse body, and high-temperature-resistant glass observation windows are arranged on two sides of the warehouse body; and a video monitoring system is arranged outside the warehouse body. As a hot air input mechanism, a current stabilizing device, the high-temperature-resistant glass windows and the video monitoring system are arranged, the voltage stabilizing test warehouse can realize the stability of temperature and wind speed in the test process, the flame state of an igniter during low-temperature-point testing is conveniently observed, and accordingly, the whole testing process is monitored.

Description

technical field [0001] The invention relates to a voltage stabilizing test chamber. Background technique [0002] In the field of aviation, it is sometimes necessary to test the product in different temperature environments before delivery to verify whether the product is suitable for various harsh working conditions. For example, an aero-engine igniter needs to conduct an oil-gas mixed low-temperature ignition test in an environment of -54°C, including test media (oil, gas), test pieces, test sections, etc. There are 5 gradients, the maximum wind speed is required to reach 55m / s, and the test conditions are harsh. Under normal circumstances, a low-temperature test environment is established by means of refrigerant exchange technology, gas external expansion, and temperature drop. However, if this low-temperature environment is used directly, there will be temperature instability, large wind speed fluctuations, and flames when the igniter is ignited. The shortcomings of be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02
Inventor 杨巍黄震胡培俊李晓东李云华商占胜
Owner HARBIN DONGAN ENGINE GRP
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