CN-121994430-A - Air tightness detection method for open shelter

CN121994430ACN 121994430 ACN121994430 ACN 121994430ACN-121994430-A

Abstract

The invention discloses an air tightness detection method of an open shelter, which comprises the steps of plugging the open shelter, reserving an air inlet and a measuring port, connecting air tightness detection equipment with the air inlet through an air inlet pipeline to feed air to the open shelter, monitoring air pressure in the open shelter through the air inlet pipeline in the air feeding process of the open shelter, measuring air speed in the air inlet pipeline at preset time intervals after the air pressure is stabilized at preset pressure, and judging whether the air tightness of the open shelter is qualified or not according to the air speed and the sectional area of the air inlet pipeline. According to the method, the specific air port is actively plugged and reserved, a detectable closed space is artificially constructed, the core problem that an open shelter structure is difficult to seal and leak is difficult to detect is solved in a targeted manner, and the air tightness detection has an implementation basis.

Inventors

TIAN MU
LIN SEN
LV ZHENG
LI ZHIYANG
ZHOU SHAOSHUAI
ZHANG JIANWEI

Assignees

郑州佛光发电设备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251227

Claims (10)

1. A method for detecting the air tightness of an open shelter, comprising: plugging the open shelter, and reserving an air inlet and a measuring port; Connecting air tightness detection equipment with the air inlet through an air inlet pipeline so as to feed air to the open shelter; In the process of supplying air to the open shelter through the air inlet pipeline, air tightness detection equipment monitors air pressure in the open shelter; After the air pressure is stabilized at a preset pressure, measuring the wind speed in the air inlet pipeline at preset time intervals; and judging whether the air tightness of the open shelter is qualified or not according to the wind speed and the sectional area of the air inlet pipeline.
2. The method for detecting the air tightness of the open shelter according to claim 1, wherein the reserving the air inlet and the measuring port comprises: The air inlet and the measuring port are reserved on two opposite side plates in the length direction of the open shelter; Or reserving the air inlet on a plugging tool for plugging the open position of the open shelter, and setting the measuring port at a preset position of the open shelter, which is far away from the open position.
3. The method for detecting the air tightness of an open shelter of claim 1, further comprising: an anemometer is arranged at the air inlet to measure the wind speed in the air inlet pipeline; A micro-manometer is mounted at the measurement port to monitor the air pressure within the open shelter.
4. A method for detecting air tightness of an open shelter as claimed in any of claims 1 to 3, wherein the judging whether the air tightness of the open shelter is qualified or not according to the wind speed and the sectional area of the air intake pipe comprises: Calculating the gas leakage amount of the open shelter according to the wind speed and the sectional area of the air inlet pipeline; Comparing the gas leakage amount with a preset leakage value, judging whether the gas tightness of the open square cabin is qualified or not if the gas leakage amount does not exceed the preset leakage value, and otherwise, judging whether the open square cabin is unqualified.
5. The method for detecting the air tightness of an open shelter according to claim 4, wherein after the air pressure is stabilized at a preset pressure, measuring the air speed in the air intake pipe at preset time intervals comprises: And after the air pressure is stabilized at the first pressure, measuring the wind speeds in a plurality of groups of air inlet pipelines at first time intervals.
6. The method of claim 5, wherein the calculating the gas leakage amount of the open shelter when measuring the wind speeds in the plurality of sets of the intake pipes at the first time interval comprises: according to the wind speeds in a plurality of groups of air inlet pipelines measured at the first time interval, calculating the gas leakage quantity of a plurality of groups of open square cabins corresponding to the wind speeds in a plurality of groups of air inlet pipelines; And calculating a first average gas leakage amount of the plurality of groups of open square cabins based on the gas leakage amounts of the plurality of groups of open square cabins.
7. The method for detecting the air tightness of an open shelter of claim 6, wherein after the air pressure is stabilized at a preset pressure, measuring the air speed in the air intake pipe at preset time intervals, further comprises: and after the air pressure is stabilized at the second pressure, measuring the wind speeds in a plurality of groups of air inlet pipelines at a second time interval or the first time interval.
8. The method of claim 7, wherein the calculating the gas leakage amount of the open shelter while measuring the wind speeds in the plurality of sets of the intake pipes at the second time interval comprises: According to the wind speeds in the plurality of groups of air inlet pipelines measured at the second time interval, calculating the gas leakage quantity of the plurality of groups of open square cabins corresponding to the wind speeds in the plurality of groups of air inlet pipelines; And calculating second average gas leakage amounts of the plurality of groups of open square cabins based on the gas leakage amounts of the plurality of groups of open square cabins.
9. The method of claim 8, wherein comparing the gas leakage amount with a preset leakage value comprises: Comparing the first average gas leakage amount with a first preset leakage value, and comparing the second average gas leakage amount with a second preset leakage value: if the first average gas leakage amount does not exceed the first preset leakage value, and the second average gas leakage amount does not exceed the second preset leakage value, judging that the air tightness of the open square cabin is qualified, otherwise, judging that the open square cabin is unqualified.
10. The method for detecting the air tightness of the open shelter according to claim 1, wherein the plugging of the open shelter comprises: Plugging an orifice on the open shelter; And a sealing tool is additionally arranged at the open position of the open shelter, and the matching position of the open shelter and the sealing tool is sealed through a hollow sealing strip.

Description

Air tightness detection method for open shelter Technical Field The invention relates to the technical field related to power station shelter, in particular to a method for detecting air tightness of an open shelter. Background The conventional air tightness test method is mainly carried out for a common large-plate shelter, wherein the large-plate shelter is a closed shelter, and the air tightness test of an open shelter is not carried out. In the use process of the open shelter, the open shelter needs to be matched with other equipment for use, after the equipment is placed, the open shelter can form sealing with the contact surface of the equipment, so that the air tightness test needs to be carried out in advance, and the sealing capability of a sealing structure at the sealing position of the open shelter is ensured. Disclosure of Invention Aiming at the defects of the prior art, the invention innovatively provides a method for detecting the air tightness of an open square cabin, which is used for solving the problem that the existing method for detecting the air tightness of the square cabin cannot detect the air tightness of the open square cabin. In order to achieve the technical purpose, the invention discloses a method for detecting the air tightness of an open shelter, which comprises the following steps: plugging the open shelter, and reserving an air inlet and a measuring port; Connecting air tightness detection equipment with the air inlet through an air inlet pipeline so as to feed air to the open shelter; monitoring the air pressure in the open shelter in the process of supplying air to the open shelter by the air tightness detection equipment; After the air pressure is stabilized at a preset pressure, measuring the wind speed in the air inlet pipeline at preset time intervals; and judging whether the air tightness of the open shelter is qualified or not according to the wind speed and the sectional area of the air inlet pipeline. Optionally, the reserving the air inlet and the measuring port includes: The air inlet and the measuring port are reserved on two opposite side plates in the length direction of the open shelter; Or reserving the air inlet on a plugging tool for plugging the open position of the open shelter, and setting the measuring port at a preset position of the open shelter, which is far away from the open position. Optionally, the method further comprises: an anemometer is arranged at the air inlet to measure the wind speed in the air inlet pipeline; A micro-manometer is mounted at the measurement port to monitor the air pressure within the open shelter. Optionally, the judging whether the air tightness of the open shelter is qualified according to the wind speed and the sectional area of the air inlet pipeline includes: Calculating the gas leakage amount of the open shelter according to the wind speed and the sectional area of the air inlet pipeline; Comparing the gas leakage amount with a preset leakage value, judging whether the gas tightness of the open square cabin is qualified or not if the gas leakage amount does not exceed the preset leakage value, and otherwise, judging whether the open square cabin is unqualified. Optionally, after the air pressure is stabilized at a preset pressure, measuring the wind speed in the air inlet pipeline at preset time intervals, including: And after the air pressure is stabilized at the first pressure, measuring the wind speeds in a plurality of groups of air inlet pipelines at first time intervals. Optionally, when measuring the wind speeds in the plurality of groups of the air intake pipes at the first time interval, the calculating the gas leakage amount of the open shelter includes: according to the wind speeds in a plurality of groups of air inlet pipelines measured at the first time interval, calculating the gas leakage quantity of a plurality of groups of open square cabins corresponding to the wind speeds in a plurality of groups of air inlet pipelines; And calculating a first average gas leakage amount of the plurality of groups of open square cabins based on the gas leakage amounts of the plurality of groups of open square cabins. Optionally, after the air pressure is stabilized at a preset pressure, measuring the wind speed in the air inlet pipeline at preset time intervals, and further including: and after the air pressure is stabilized at the second pressure, measuring the wind speeds in a plurality of groups of air inlet pipelines at a second time interval or the first time interval. Optionally, when measuring the wind speeds in the plurality of groups of the air intake pipes at the second time interval, the calculating the gas leakage amount of the open shelter includes: According to the wind speeds in the plurality of groups of air inlet pipelines measured at the second time interval, calculating the gas leakage quantity of the plurality of groups of open square cabins corresponding to the wind speeds in the plurality