KR20100042568A - Ultrasonic leak test for pipe - Google Patents

Ultrasonic leak test for pipe Download PDF

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Publication number
KR20100042568A
KR20100042568A KR1020080101781A KR20080101781A KR20100042568A KR 20100042568 A KR20100042568 A KR 20100042568A KR 1020080101781 A KR1020080101781 A KR 1020080101781A KR 20080101781 A KR20080101781 A KR 20080101781A KR 20100042568 A KR20100042568 A KR 20100042568A
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KR
South Korea
Prior art keywords
ultrasonic
detection device
leak detection
pipe
unit
Prior art date
Application number
KR1020080101781A
Other languages
Korean (ko)
Inventor
서덕술
장영배
장익준
Original Assignee
(주) 플러스코랩
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by (주) 플러스코랩 filed Critical (주) 플러스코랩
Priority to KR1020080101781A priority Critical patent/KR20100042568A/en
Publication of KR20100042568A publication Critical patent/KR20100042568A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor

Abstract

PURPOSE: An apparatus for detecting leakage of ultrasonic waves for a condenser pipe is provided to measure ultrasonic generation by consisting of a plurality of microphones in a sealed space to detect force and location of the ultrasonic waves. CONSTITUTION: An apparatus for detecting leakage of ultrasonic waves for a condenser pipe includes a sealed vessel(4), an ultrasonic detector(6), and an ultrasonic oscillator(7). A sample(3) to be measured is installed inside the sealed vessel with a reflector(2). The ultrasonic wave created from the ultrasonic oscillator is detected through the ultrasonic detector. The ultrasonic detector is arranged inside the sealed vessel.

Description

Ultrasonic Leakage Detector for Condenser Piping {Ultrasonic leak test for pipe}

The present invention relates to the configuration of an ultrasonic leak detection device for condenser piping and a similar leak detection device. By providing a leak detection device composed of a control system unit including a leakage measurement monitoring circuit through a circuit, it was intended to quickly and easily analyze the leakage position and size in a pipe.

Conventional leak detection devices include a water leakage leak detection device that checks whether a bubble is generated by submerging the pipe itself or a helium leak detection device that checks the leaked helium gas by injecting helium gas into the pipe. In case of water-based leak detection device, inspection time is long and depends on manual, product drying time is required after inspection, and in case of helium leak detection device, detection performance varies depending on expensive operating cost or changes in external temperature and air pressure factors. And other disadvantages have been exposed.

In order to solve this problem, it is possible to provide a leak detection device using ultrasonic generation and detection that can be inspected faster than the conventional water-based leak detection device, has a low operating cost, and has little influence on external factors.

An object of the present invention is to provide a configuration of the ultrasonic leak detection device for condenser piping.

In order to meet the requirements, a transducer for generating ultrasonic waves is located on one side of the condenser pipe, and a plurality of microphones are formed in a confined space to detect the position and intensity of ultrasonic waves flowing out from the leaking position of the pipe so that ultrasonic generation and measurement can be performed. do.

In addition, the control system for the generation and detection of the ultrasonic wave is located to configure the generation circuit for generating ultrasonic waves of 10KHz ~ 50KHz, and the analysis circuit and monitoring system for grasping the intensity and location of the ultrasonic waves received from the plurality of microphones.

In order to satisfy the requirements, it characterized in that it consists of a sample inspection unit consisting of a sealed space with an ultrasonic oscillation unit and the ultrasonic detection unit and a control system unit including a leakage measurement monitoring circuit through the generation of ultrasonic waves and the measurement of ultrasonic waves.

The enclosed space constituting the sample inspection unit includes an ultrasonic generator composed of piezoelectric ceramics at one inlet of the conduit and an ultrasonic detector composed of microphones located at four sides of the confined space. The ultrasonic generator circuit comprises a 10KHz ~ 50KHz ultrasonic generator circuit for ultrasonic oscillation of piezoelectric ceramics, an analysis circuit for analyzing the signal received from the microphone, and a monitor to show the position of the received signal.

According to the present invention, it is possible to provide a leak detection device that can be inspected faster than a conventional water-based leak detection device, has a low operating cost, and has less influence on changes in external factors.

To satisfy the above requirements

And a control system unit including a leakage measurement monitoring circuit through generation of ultrasonic waves and measurement of ultrasonic waves.

The enclosed space constituting the sample inspection unit includes an ultrasonic generator composed of piezoelectric ceramics at one inlet of the conduit and an ultrasonic detector composed of microphones located at four sides of the confined space. The ultrasonic generator circuit comprises a 10KHz to 50KHz ultrasonic wave generator for ultrasonic oscillation of piezoelectric ceramics, an analysis circuit for analyzing the signal received from the microphone, and a monitor for showing the position of the received signal.

Hereinafter, an ultrasonic leak detection apparatus for condenser piping according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an ultrasonic leak detection device for condenser piping.

Referring to FIG. 1, the ultrasonic leak detection apparatus for condenser piping includes a sealed container 4, an ultrasonic wave sensing unit 6, and an ultrasonic wave oscillating unit 7.

The measurement sample (3), which is the condenser pipe to be measured, is installed in the sealed container (4) in which the suction layer (1) and the reflector plate (2) are installed, and the leakage of the condenser pipe to be measured by the ultrasonic wave generated from the ultrasonic wave oscillation unit (7). Ultrasonic waves generated at the point 5 are detected through the ultrasonic sensor 6 inside the sealed container.

Condenser piping is connected via a pipe connected to the valve and condensation refrigerant gas for ease of use during the process.

1 is a block diagram of an ultrasonic leak detection device for condenser piping

Figure 112008072137406-PAT00002

Description of the Related Art

1: Intake layer 2: Reflector

3: measuring sample 4: airtight container

5: Leakage point 6: Ultrasonic detector

7: ultrasonic oscillator 8: valve

9: condensation refrigerant gas

Claims (3)

The present invention relates to a configuration of an ultrasonic leak detection device for condenser piping as a control system unit including a sample inspection unit consisting of an ultrasonic oscillation unit and a sealed space with an ultrasonic detection unit, and a leakage measurement monitoring circuit through generation of ultrasonic waves and measurement of ultrasonic waves. Ultrasonic leak detection device for condenser piping, characterized in that made. The method of claim 1, wherein the sample inspection unit Ultrasonic leakage for condenser piping characterized in that the condenser pipe is inserted into an ultrasonic oscillation unit composed of piezoelectric ceramics and an ultrasonic detection unit composed of a plurality of microphones located at four sides of the sealed space at one inlet of the pipe. Detection device. According to claim 1, wherein the control system unit Ultrasonic leak detection device for condenser piping comprising a 10KHz ~ 50KHz ultrasonic generator circuit for the ultrasonic oscillation of piezoelectric ceramics, an analysis circuit for analyzing the signal received from the microphone, and a monitor for showing the position of the received signal .
KR1020080101781A 2008-10-16 2008-10-16 Ultrasonic leak test for pipe KR20100042568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080101781A KR20100042568A (en) 2008-10-16 2008-10-16 Ultrasonic leak test for pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080101781A KR20100042568A (en) 2008-10-16 2008-10-16 Ultrasonic leak test for pipe

Publications (1)

Publication Number Publication Date
KR20100042568A true KR20100042568A (en) 2010-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080101781A KR20100042568A (en) 2008-10-16 2008-10-16 Ultrasonic leak test for pipe

Country Status (1)

Country Link
KR (1) KR20100042568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196634A (en) * 2013-04-11 2013-07-10 中国船舶重工集团公司第七�三研究所 Ultrasonic wave valve leakage detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196634A (en) * 2013-04-11 2013-07-10 中国船舶重工集团公司第七�三研究所 Ultrasonic wave valve leakage detection device
CN103196634B (en) * 2013-04-11 2015-09-09 中国船舶重工集团公司第七�三研究所 Ultrasonic wave valve leakage detection device

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