RU98111321A - METHOD FOR DETERMINING THE DISTANCE TO THE LOCATION OF LEAKAGE IN LONG-DIMENSIONAL PRODUCTS - Google Patents
METHOD FOR DETERMINING THE DISTANCE TO THE LOCATION OF LEAKAGE IN LONG-DIMENSIONAL PRODUCTSInfo
- Publication number
- RU98111321A RU98111321A RU98111321/28A RU98111321A RU98111321A RU 98111321 A RU98111321 A RU 98111321A RU 98111321/28 A RU98111321/28 A RU 98111321/28A RU 98111321 A RU98111321 A RU 98111321A RU 98111321 A RU98111321 A RU 98111321A
- Authority
- RU
- Russia
- Prior art keywords
- product
- distance
- gas
- flow rate
- leakage
- Prior art date
Links
Claims (1)
где Q - объемный расход газа;
L - длина между концами изделия;
Р = P1 - P2 - перепад давления на концах изделия,
затем замеряют расход и давление газа на концах негерметичного изделия и определяют расстояние до места негерметичности по формуле
где Lx1 - расстояние до места негерметичности от первого конца изделия;
Q1, Q2 - объемный расход газа, подаваемый в изделие соответственно через первый и второй концы;
P1 и P2 - давление газа соответственно на первом и втором концах изделия;
α - пневмопроводимость герметичного изделия.A method for determining the distance to a leak point in long products under excessive gas pressure by measuring the gas flow rate and pressure at several points of the product and determining the distance to the leak point from them, characterized in that the gas flow rate and pressure drop are measured first in a sealed product at unilateral gas supply and determine the pneumatic conductivity of the product according to the formula
where Q is the volumetric flow rate of gas;
L is the length between the ends of the product;
P = P 1 - P 2 - pressure drop at the ends of the product,
then measure the flow rate and gas pressure at the ends of the leaky product and determine the distance to the place of leakage by the formula
where L x1 is the distance to the place of leakage from the first end of the product;
Q 1 , Q 2 - the volumetric flow rate of gas supplied to the product, respectively, through the first and second ends;
P 1 and P 2 - gas pressure, respectively, at the first and second ends of the product;
α is the pneumatic conductivity of the sealed product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU98111321A RU2155947C2 (en) | 1998-06-15 | 1998-06-15 | Method for detection of distance to place of leaking in long sized articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU98111321A RU2155947C2 (en) | 1998-06-15 | 1998-06-15 | Method for detection of distance to place of leaking in long sized articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU98111321A true RU98111321A (en) | 2000-04-20 |
| RU2155947C2 RU2155947C2 (en) | 2000-09-10 |
Family
ID=20207232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU98111321A RU2155947C2 (en) | 1998-06-15 | 1998-06-15 | Method for detection of distance to place of leaking in long sized articles |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2155947C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088573B (en) * | 2021-11-12 | 2023-09-12 | 国网湖南省电力有限公司 | High-voltage cable insulation damage detection method, system and medium |
-
1998
- 1998-06-15 RU RU98111321A patent/RU2155947C2/en active
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