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Line leak detector and method of using same

A detector and line technology, applied in the field of leak detection, which can solve the problems of increasing allocation time, increasing customer dissatisfaction, and increasing the effect.

Inactive Publication Date: 2014-09-03
OPW FUEL MANAGEMENT SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] While the leak detectors described above function essentially for their intended purpose, there are some drawbacks that make the use of such devices problematic in fuel dispensing operations
For example, such a leak detector essentially represents a "bottleneck" in the total dispensing system that limits the delivery of fuel to the dispensing unit
As a result, delivery of fuel to motor vehicles and the like may appear relatively slow, resulting in increased dispensing times and increased customer dissatisfaction
Furthermore, the effect of this flow restriction can be exacerbated when there are multiple users on a single fluid line

Method used

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  • Line leak detector and method of using same
  • Line leak detector and method of using same
  • Line leak detector and method of using same

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Embodiment Construction

[0023] figure 1 A typical fuel distribution system 10 according to an embodiment of the present invention is shown in , and basically includes an underground storage tank ("UST") 12 for storing fuel, a submersible pump 14 located in the tank 12, and under pressure Fluid piping lines 16 that carry fuel to one or more dispensing units 18, such as figure 1 shown schematically. Typically, fluid conduit line 16 is coupled to submersible pump 14 via a pump manifold 20, which is typically located external to tank 12, such as in a covered pit (not shown). Pump manifold 20 may include a check valve 22 for preventing fuel from flowing back into tank 12 . Since the check valve 22 prevents any fuel from flowing back into the tank 12, when the dispensing unit 18 is closed or closed thereby preventing fuel from flowing from the piping line 16, the fluid piping line 16 defines a closed system containing a quantity or volume of fuel whose Depends on a number of factors, including the lengt...

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PUM

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Abstract

An apparatus for detecting leaks in a pipeline line, comprising a housing in fluid communication with the line, a valve including a valve seat and a valve element movable relative to the valve seat between open and closed positions, a bypass line surrounding the valve , a flow detector coupled to the bypass line for detecting fluid flow therethrough, and a first mechanism configured to urge the valve element toward the closed position. The device may also include a second mechanism, separate from the first mechanism, for maintaining the valve element in the closed position until a threshold pressure drop is reached. The first mechanism may operate on the principle of buoyancy, while the second mechanism may operate on the principle of magnetism.

Description

technical field [0001] The present invention relates to leak detection and is particularly applicable to detecting leaks from pressurized fuel delivery pipelines in dispensing operations, such as gas stations. Background technique [0002] Spills of petroleum products, including gasoline, into the environment can damage surrounding soil and water. Once a leak is detected, cleaning or remediation can be costly and time-consuming. Thus, there is a need to identify leaks as early as possible. [0003] In distribution operations, such as gas stations, fuel is typically stored in underground storage tanks ("USTs") from where it is pumped through various pipeline lines to above-ground distribution units for distribution to motor vehicles and the like. Leakage of fuel from tanks or interconnected piping lines to dispensers can cause significant environmental damage. The United States Environmental Protection Agency ("EPA"), as well as many foreign regulatory agencies, have estab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D5/02F17D1/08
CPCG01M3/2892Y10T137/7361Y10T137/7358Y10T137/7323
Inventor I·F.·贾维
Owner OPW FUEL MANAGEMENT SYST