High-pressure micro-flow type leak hunting device
A technology of micro-flow and leak detection, which is applied in the field of leak detection, can solve the problems of low precision and high precision, and achieve the effect of strong adaptability
Inactive Publication Date: 2021-09-03
重庆云壬工贸有限公司
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Problems solved by technology
However, these methods can only perform some low-precision or high-precision leak detection, and when some very high-precision leak detection is required, they cannot meet the requirements of use.
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Embodiment 1
[0022] Basic as attached figure 1 to attach figure 2 As shown, a high-pressure micro-flow leak detection device includes a gas source 1 and a micro-flow leak detection assembly 2. The gas source 1 is provided with pipelines for gas flow to be connected to the standard container 3 and the container 4 to be tested respectively. , the gas source 1 can deliver nitrogen at the same pressure, and then the nitrogen enters the standard container 3 and the test container 4 respectively through different pipelines. An exhaust valve (not shown) is also installed on the pipeline connected to the container 4 to be tested, and the exhaust valve can directly discharge the high-pressure gas inside the container 4 to be tested after the experiment is completed.
[0023] The standard container 3 is a standard airtight container, while the container 4 to be tested may have some leakage. The purpose of this device is to detect the leakage of the container 4 to be tested.
[0024] The micro-fl...
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The invention belongs to the field of leakage detection, and particularly relates to a high-pressure micro-flow type leakage detection device. The device comprises a gas source and a micro-flow leak hunting assembly, and the gas source is provided with a pipeline for gas to flow and is respectively connected to a standard container and a container to be detected; the micro-flow leak hunting assembly comprises a first liquid storage device, a second liquid storage device, a communicating vessel and a liquid level sensor, liquid-state fluid is arranged in the first liquid storage device and the second liquid storage device, and the communicating vessel is further connected between the first liquid storage device and the second liquid storage device, a pipeline is arranged at the top end of the first liquid storage device and is connected to the container to be detected, a pipeline is arranged at the top end of the second liquid storage device and is connected to a standard container, a liquid level sensor is further arranged in the second liquid storage device, and the liquid level sensor is connected with an industrial personal computer. The invention provides a high-pressure micro-flow type leak detection device, and aims to meet very high-precision leak detection of a to-be-detected container.
Description
technical field [0001] The invention belongs to the field of leak detection, and in particular relates to a high-pressure micro-flow leak detection device. Background technique [0002] Leak detection is the abbreviation of "leak detection" and "leak monitoring". It refers to the use of professional methods and instruments to inspect production equipment, devices or appliances such as pipelines and storage tanks, to find out whether there is leakage, and to obtain the amount of leakage. Leak testing can be divided into high-pressure leak testing and low-pressure leak testing. High-pressure leak testing is to test the leakage of containers or pipelines under high pressure. [0003] The existing high-pressure leak detection methods mainly include air pressure water seepage method, pressure decay method and helium gas spectrometry. However, these methods can only perform some low-precision or high-precision leak detection, and when some very high-precision leak detection is re...
Claims
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IPC IPC(8): G01M3/32
CPCG01M3/3281G01M3/329
Inventor 王友军温炳刘林
Owner 重庆云壬工贸有限公司