Pipeline leakage judging method and device
A judging method and pipeline leakage technology, which is applied in the field of pipeline systems, can solve problems such as lowering the expected value, failing to correctly judge pipeline leakage, and reducing pipeline pressure values, and achieve the effect of improving accuracy
Active Publication Date: 2018-03-09
PETROCHINA CO LTD
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[0004] In order to solve the problem that the pressure value of the entire pipeline is reduced, the staff cannot correctly estimate the pressure value to reduce the expected value, and cannot correctly judge whether the pipeline leaks. The disclosure provides a pipeline leakage determination method and device
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[0018] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0019] figure 1 It is a flow chart of a method for judging pipeline leakage according to an exemplary embodiment, as shown in figure 1 As shown, the pipeline leakage judgment method includes the following steps.
[0020] In step 101, during the process of stopping the transmission and stabilizing the pressure, the pipeline pressure of the pipeline and the medium temperature of the me...
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The invention discloses a pipeline leakage judging method and device and belongs to the field of pipeline systems. The method includes the steps that in the transporting stopping and pressure stabilizing process, the pipeline pressure of a pipeline and the medium temperature of a medium conveyed in the pipeline are recorded; the pipeline body volume change value and the medium volume change valueof the pipeline are calculated according to the pipeline pressure and the medium temperature; and when the medium volume change value is equal to the pipeline body volume change value, whether leakagehappens to the pipeline or not is judged. The problems that the pressure value of the whole section of pipeline is reduced, consequently, a worker cannot correctly estimate the pressure value to reduce the predicated value, and whether leakage happens to the pipeline or not cannot be correctly judged are solved; and the effects that the temperature and pressure changes are counted after transportation of the pipeline is stopped, and the accuracy for predicating whether leakage happens to the pipeline or not is improved are achieved.
Description
technical field [0001] The present disclosure relates to the field of pipeline systems, in particular to a method and device for judging pipeline leakage. Background technique [0002] At the initial stage of commissioning, the oil pipeline needs to be tested under high pressure water. No significant change in pressure during the test indicates that there is no leakage in the pipeline. [0003] Since the temperature of the oil product is generally higher than the ground temperature, the temperature of the oil product in the pipeline will decrease, and the temperature decrease will cause the volume of the oil product to shrink and the pressure in the pipeline to decrease. When the pressure in the pipeline decreases, the pipe body of the pipeline will also shrink, resulting in a decrease in the pressure value of the entire pipeline, causing the staff to be unable to correctly estimate the pressure value to reduce the expected value, and cannot correctly judge whether the pipel...
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IPC IPC(8): F17D5/06
CPCF17D5/06
Inventor 闫锋王玉彬聂超飞苗青刁宇王鹏宇陶江华欧阳欣王大鹏李其抚彭世垚李博
Owner PETROCHINA CO LTD