Pressure tank and detection method of pressure tank internal abnormality
First Claim
1. A pressure tank comprising,a tank wall;
- a supporting member which includes fiber reinforced plastic and supports an outer surface of the tank wall;
a supersonic wave sensor which is connected to the tank wall, and which detects a sonic wave propagated in the tank wall; and
an internal abnormality determination member which is connected to the supersonic wave sensor, and which determines whether an internal abnormality exits in the tank wall, whereinthe internal abnormality determination member determines the existence of the internal abnormality based on the detection result during gas is charged into the pressure tank, and outputs an abnormality signal when the internal abnormality was determined to exist.
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Accused Products
Abstract
A pressure tank including, a tank wall; a supporting member which includes fiber reinforced plastic and supports an outer surface of the tank wall; a supersonic wave sensor which is connected to the tank wall, and which detects a sonic wave propagated in the tank wall; and an internal abnormality determination member which is connected to the supersonic wave sensor, and which determines whether an internal abnormality exits in the tank wall, wherein the internal abnormality determination member determines the existence of the internal abnormality based on the detection result during gas is charged into the pressure tank, and outputs an abnormality signal when the internal abnormality was determined to exist.
7 Citations
11 Claims
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1. A pressure tank comprising,
a tank wall; -
a supporting member which includes fiber reinforced plastic and supports an outer surface of the tank wall; a supersonic wave sensor which is connected to the tank wall, and which detects a sonic wave propagated in the tank wall; and an internal abnormality determination member which is connected to the supersonic wave sensor, and which determines whether an internal abnormality exits in the tank wall, wherein the internal abnormality determination member determines the existence of the internal abnormality based on the detection result during gas is charged into the pressure tank, and outputs an abnormality signal when the internal abnormality was determined to exist. - View Dependent Claims (2, 3, 4, 5)
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6. A pressure tank comprising:
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a tank wall provided with a supporting member including fiber reinforced plastic at a outer surface of the tank wall; a supersonic wave probe provided on the tank wall, which emits a sonic wave into the tank wall, and receives a reflection sonic wave of the emitted sonic wave; and an internal abnormality determination member which determines the status of an internal abnormality in the tank wall, based on the reflection sonic wave received by the supersonic wave probe, wherein; the internal abnormality determination member performs a noise cancellation, by comparing the reflection sonic wave received by the supersonic wave probe, and a sonic wave stored in advance in a status where no internal abnormality exists; and the internal abnormality determination member determines a status of the internal abnormality, based on a status of the reflection sonic wave after the noise cancellation, wherein the sonic wave stored in advance comprises a plurality of amplitude and corresponding time values. - View Dependent Claims (7, 8)
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9. An internal abnormality detection method of a pressure tank, the pressure tank having a tank wall and a supporting member at an outer surface of the tank wall, the supporting member including fiber reinforced plastic, the method comprising:
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a sonic wave detection process which detects a sonic wave that propagates in the tank wall accompanied with an internal pressure rise in the tank wall; an internal abnormality determination process which determines whether an internal abnormality of the tank wall exists or not; and an abnormality signal output process, in which, when the internal abnormality determination process determined that an internal abnormality exists in the tank wall, an abnormality signal is outputted, wherein; the internal abnormality determination process includes a noise cancellation process, which performs a noise cancellation by comparing a sonic wave status detected in the sonic wave detection process and a sonic wave status propagated in the tank wall in a state in which no internal abnormality exists in the tank wall; and the internal abnormality determination process uses the sonic wave status after the noise cancellation, in order to determine the internal abnormality in the tank wall.
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10. An internal abnormality detection method of a pressure tank, the pressure tank having a tank wall and a supporting member at an outer surface of the tank wall, the supporting member including fiber reinforced plastic, the method comprising:
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a sonic wave emission process which emits a sonic wave into the tank wall; an echo reception process which receives a reflection sonic wave of the sonic wave emitted in the sonic wave emission process; an internal abnormality determination process which determines the status of an internal abnormality of the tank wall; and an abnormality signal output process, in which, when the internal abnormality determination process determined that an internal abnormality exists in the tank wall, an abnormality signal is outputted, wherein; the internal abnormality determination process includes a noise cancellation process, which performs a noise cancellation by comparing the reflection sonic wave detected in the echo reception process and a sonic wave propagated in the tank wall in a state in which no internal abnormality exists in the tank wall; and the internal abnormality determination process uses the sonic wave status after the noise cancellation, in order to determine the internal abnormality in the tank wall, wherein the sonic wave propagated in a tank in a state in which no internal abnormality exists comprises a plurality of amplitude and corresponding time values. - View Dependent Claims (11)
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Specification