Inflating device for isolation bag, isolation bag, inflation bottle and inflation method

Abstract

The invention discloses an inflatable device for an isolation bag, an isolation bag, an inflatable bottle and an inflatable method. The inflation device includes: a first electronically controlled valve with an air inlet and an air outlet; an inflatable bottle connecting pipeline, one end connected to the air inlet; an isolation bag connecting pipeline, one end connected to the air outlet; a pressure detection device installed in the isolation The flow regulator is installed on the connection pipeline of the inflatable bottle, and the flow regulator is connected in series with the pressure detection device; the controller is configured to, after the pressure in the isolation bag reaches the set value, continuously obtain the pressure detection device detection When the pressure value detected by the pressure detection device is lower than the set value, the first electronic control valve and the flow regulator are controlled to open, and the valve opening of the flow regulator is adjusted according to the pressure value detected by the pressure detection device. The invention can avoid the problem that the pressure of the isolation bag is not enough to block the pipeline due to puncture and air leakage of the isolation bag, resulting in failure of oil and gas isolation and potential safety hazards.

Description

Inflating device for isolation bag, isolation bag, inflatable bottle and inflating method technical field The present invention relates to the field of oil and gas pipelines, in particular to an inflator, an isolation bag, an inflatable bottle and an inflator of an isolation bag. gas method. Background technique [0002] Carry out hot work on the oil and gas pipelines that have been put into use (such as carrying out possible flames, During the welding and cutting operations of sparks), it is necessary to block the oil and gas pipelines to realize the oil and gas isolation in the pipelines and prevent hot fires. During operation, oil and gas enter the hot work area and cause safety problems. At present, adopt isolating bag to carry out oil and gas isolation to pipeline, when using, isolating bag is put into pipeline, use nitrogen gas The bottle fills the isolation bag with nitrogen. When filling, the nitrogen pressure on the pipeline connected to the isolation bag ca...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an isolation bag inflation device, an isolation bag, an inflatable bottle, and an inflation method, which can prevent the isolation bag from leaking due to puncture, so that the pressure of the isolation bag is not enough to block the pipeline, resulting in failure of oil and gas isolation. Issues that pose a safety hazard

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