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Method for performing a pressure test on a tank and tank filling apparatus

A technology of pressure testing and storage tanks, which is applied in the direction of equipment loaded into pressure vessels, equipment discharged from pressure vessels, methods of container discharge, etc., which can solve the problems of downstream component wear, easy failure, and shortened service life of components , to achieve the effect of load avoidance

Active Publication Date: 2015-05-20
LINDE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such load fluctuations in the pipelines and tank feed lines lead to more rapid wear of downstream components and thus to greater susceptibility to failure and shortened service life of these components
[0007] In addition, during pressure pulsations, shut-off devices that act by temperature, pressure or pressure drop (leakage) are generally no longer effective, so that overheating of the tank, overfilling or partial filling of the non-tight tank during the pressure pulsation In the worst case, there may also be

Method used

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  • Method for performing a pressure test on a tank and tank filling apparatus
  • Method for performing a pressure test on a tank and tank filling apparatus
  • Method for performing a pressure test on a tank and tank filling apparatus

Examples

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Embodiment Construction

[0032] figure 1A schematic diagram of a filling device (filling station) with a ramp valve 1 is shown, wherein the ramp valve is controlled by means of a ramp regulator. A refrigerator 2 (aluminum cold fill) is arranged downstream of the boost valve 1 , which tempers the hydrogen flow (for example from a gas buffer tank) through the boost valve 1 to in particular -40° C. A tank feed line 3 is flow-guidingly connected to the refrigerator 2 , wherein said tank feed line 3 comprises a first, in particular pneumatic valve 5 downstream of the refrigerator, followed by a manual valve 6 . A bypass line 7 is arranged to bridge the first valve 5 and the manual valve 6 , the bypass line is connected to the tank feed line 3 in a flow-guiding manner. The bypass line 7 comprises a second, in particular pneumatic valve 8 , followed by a throttle 9 . In the tank feed line 3 a flow measuring device 13 is arranged downstream of the throttle 9 . Downstream of the flow measuring device 13 , a...

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PUM

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Abstract

The invention relates to a method for performing a pressure test on a tank (e.g. hydrogen tank) and to an apparatus for performing the method according to the invention. According to the invention, the tank (4) is connected via a tank valve (10) to a tank feed line (3) which has a first valve (5) for shutting off the tank feed line (5), wherein during the pressure test prior to the tank (4) being filled through the tank feed line (3) a flow of medium, with the first valve (5) closed, is directed into the tank (4) via a bypass line (7) bridging the first valve (5), wherein the flow of medium is throttled in the bypass line (7) such that a tank feed pressure acting on the tank valve (10) rises in a controlled manner, wherein the tank valve (10) opens particularly when the tank feed pressure exceeds the pressure prevailing in the tank (4).

Description

technical field [0001] The invention relates to a method for carrying out pressure detection on a tank and the invention relates to a tank filling device for filling a tank with a gaseous pressurized medium, in particular in the form of hydrogen, according to the preamble of claim 8 . Background technique [0002] Vehicles refueled with gaseous hydrogen as fuel require specially designed filling equipment that can deliver hydrogen at a relatively high pressure (e.g. 700 bar) to a (vehicle) tank or another hydrogen Inside the tank. Such filling stations generally comprise tanks with liquid hydrogen or are directly connected to hydrogen lines or other facilities which may constitute hydrogen storage tanks. Since the hydrogen should be present in gaseous form for the filling, the filling station usually comprises a gas buffer tank which is fed from the aforementioned (liquid hydrogen) tank and keeps the gaseous hydrogen available. [0003] In order to ensure the safety of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/00F17C5/02F17C5/06
CPCF17C5/04F17C7/00F17C2205/0323F17C2205/0326F17C2205/0332F17C2205/0338F17C2221/012F17C2223/0123F17C2223/036F17C2225/0123F17C2225/036F17C2227/0337F17C2227/04F17C2250/0443F17C2250/0478F17C2260/023F17C2260/036F17C2260/042F17C2265/065F17C2270/0139F17C5/007F17C5/02F17C5/06Y02E60/32F17C2250/0626
Inventor R·阿德勒M·普凡德M·拉施M·斯特凡
Owner LINDE AG