KR900002067A - Leak Detection Device and Method in Fluid Storage Room - Google Patents

Abstract

No content

Description

Leak Detection Device and Method in Fluid Storage Room

Since this is an open matter, no full text was included.

1 is a longitudinal sectional view of a fuel tank leak detector,

2 is a cross-sectional view of the fuel tank leak detector, showing a perspective view of the hole sealing assembly,

FIG. 3 is a cross sectional view of the hole sealing assembly taken along line 3-3 of FIG.

Claims (5)

A leak detection apparatus for a portion of a fluid reservoir having at least two holes, comprising: two chambers of fixed and retractable portions, the vacuum chamber being substantially consistent with the shape of the fluid reservoir portion: an inlet integrally formed in the vacuum chamber Manifold and vacuum manifold: at least two reciprocating hole seal assemblies that can be inserted into the holes to seal the fluid reservoir from air flow: a fluid reservoir exhaust manifold disposed in one of the hole seal assemblies. ; Inspection fluid introduction means disposed in one of the hole sealing assemblies; Fluid reservoir scavenging air introduction means disposed in one of said aperture sealing assemblies; Annular means disposed on the hole sealing assemblies and for sealing the hole sealing assemblies at least partially inserted into the holes; Pneumatic means for reciprocating the retractable portion from the fixed portion; Pneumatic means for reciprocating the hole sealing assemblies to insert the hole sealing assemblies into the holes; Metal vacuum means connected pneumatically to said vacuum manifold to rapidly depressurize said vacuum chamber to a predetermined test pressure; Inspection vacuum means connected to the vacuum chamber pneumatically to maintain the inspection pressure in the vacuum chamber during inspection; Air introduction means connected to said inlet manifold for introducing air into said vacuum chamber; Inspection fluid detection means exposed to an effluent of the inspection vacuum means; The leak detection device consisting of. 2. The leak detection apparatus according to claim 1, further comprising means for preventing damage to the vacuum chamber caused by excessive internal pressure by opening the vacuum chamber when a predetermined level of pressure in the vacuum chamber is exceeded. 2. The leak detection apparatus according to claim 1, further comprising means for returning the atmosphere around the vacuum chamber to prevent accumulation of the test fluid in the atmosphere around the vacuum chamber. CLAIMS 1. A method for detecting leaks in a portion of a fluid reservoir within a device comprising a vacuum chamber that is robust internally, comprising: mounting the fluid reservoir portion in the vacuum chamber; Sealing and sealing the vacuum chamber; Sealing all holes in the fluid reservoir portion; Reducing the air pressure in the vacuum chamber; Injecting filtered air into the vacuum chamber; Reducing the air pressure in the vacuum chamber to a test pressure by vacuum means; Injecting a test fluid mixture into the fluid reservoir portion; Sensing the output of said vacuum means with a test fluid detection means; Emptying the fluid reservoir portion; Scavenging the fluid reservoir portion and the vacuum chamber; Removing the fluid reservoir portion from the vacuum chamber; The leak detection method consisting of. 5. The method of claim 4, wherein upon detection of leakage, for each zone of the vacuum chamber zones, purified air at a pressure above the test pressure is introduced into one end of the zone and air is introduced into one end of the zone and the air is Flowing the air through the zone, flowing the air stream at the opposite end of the zone through the vacuum means, and detecting the effluent of the vacuum means with the sensing means to continuously leak the leakage to the vacuum chamber areas. The leak detection method further comprises the step of inspecting ※ Note: The disclosure is based on the initial application.