CN104374531A - Digital suction gun for single-point leakage detection - Google Patents
Digital suction gun for single-point leakage detection Download PDFInfo
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- CN104374531A CN104374531A CN201410660437.8A CN201410660437A CN104374531A CN 104374531 A CN104374531 A CN 104374531A CN 201410660437 A CN201410660437 A CN 201410660437A CN 104374531 A CN104374531 A CN 104374531A
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- suction gun
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- leak
- leakage detector
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Abstract
The invention discloses a digital suction gun system for single-point leakage detection. The digital suction gun system comprises a digital suction gun, a leakage detector, a direct-current voltage-stabilized power source, a communication and power cable and a gas hose, wherein the digital suction gun comprises a suction gun body, a touch liquid crystal screen and a control circuit, the communication and power cable and the gas hose form an integrated pipeline which is split at the connecting end of the leakage detector, the gas hose is connected with a gas sampling opening of the leakage detector, and the communication and power cable is electrically connected with a communication interface of the leakage detector and further electrically connected with the direct-current voltage-stabilized power source. The digital suction gun has the function for regulating the inlet pressure of the leakage detector and can regulate the inlet pressure of the leakage detector according to different application occasions, gas flow control is achieved, a leakage detecting person can remotely operate the leakage detector conveniently through the touch liquid crystal screen, the state and the data of the leakage detector can be visually displayed, and a historical leakage rate curve is drawn.
Description
Technical field
The present invention relates to a kind of single-point leak test plant, particularly relate to the digitizing suction gun equipment in spacecraft malleation single-point leak detection process.
Background technology
Leak the secure transmission and in orbit stably of serious threat spacecraft, various spacecraft all will carry out strict leak test at single machine production and general assembly stage.Spacecraft, in the general assembly stage, will be hunted leak one by one to all weld seams, is guaranteed the leak rate of each weld seam in allowed limits.
Spacecraft leak detection adopts Helium Leak Test usually, first to the helium being filled with authorised pressure by check system during leak detection, then carry out smelling spy in weld seam outside with suction gun, the gas of weld seam outside is sucked helium mass spectrometer leak detector by suction gun, and helium mass spectrometer leak detector measures the actual leak rate of weld seam according to the amount of helium sucked.
Traditional suction gun of the prior art is see Fig. 1, its needle-valve only comprising kapillary, filtrator and regulate leak locator inlet pressure, bag is collected in the local that suction gun is penetrated measuring point to be checked by leak detection personnel, and leak locator is measured the concentrations of helium of collecting in bag and is converted into leak rate value.In actual leak detection process, operating personnel's general distance leak locator is comparatively far away, cannot observe the reading of leak locator or cannot carry out Long-distance Control to leak locator.Therefore, traditional malleation single-point leak hunting method needs a people to operate suction gun usually, need another person near leak locator, carry out reading and leak locator operation simultaneously, i.e. waste of manpower cost, and operating personnel directly cannot check the measured value of leak locator, in leak detection process, easily there is the situation of erroneous judgement.
In order to save labor cost and improve single-point leak detection efficiency, a kind of digitizing suction gun for single-point leak detection invented by ad hoc meter, realizes the remote access of leak locator data and the Long-distance Control of leak locator.
Summary of the invention
The object of this invention is to provide a kind of digitizing suction gun equipment for the leak detection of malleation single-point, can handled easily personnel remote reviewing leak locator state and leak rate data, and Long-distance Control can be carried out to leak locator.
The technical solution used in the present invention is as follows:
A kind of digitizing suction gun system for single-point leak detection, comprise digitizing suction gun, the leak locator carrying out Long-distance Control by RS232 agreement, D.C. regulated power supply, communication and feed cable and air hose, wherein communication and feed cable and air hose form integrated pipeline, integrated pipeline at leak locator link separately, air hose is connected with leak locator gas sample interface, telecommunication cable is connected with the communication interface of leak locator, feed cable is electrically connected with D.C. regulated power supply, for digitizing suction gun liquid crystal display and control circuit provide power supply.
Wherein, digitizing suction gun is primarily of the suction gun body of regulating flow quantity, and control circuit board, touch LCD screen and engineering plastics shell form.
Wherein, suction gun body and Circuits System realize electrical isolation every.
Wherein, suction gun body is connected with air hose, and communication and feed cable are connected with the control circuit board in suction gun body, and air hose and communication and feed cable make integrated pipeline in digitizing suction gun lower end.
Compared with prior art, the digitizing suction gun system for single-point leak detection of the present invention has following feature:
1) the digitizing suction gun of the present invention's design has leak locator inlet pressure adjustment function, according to different application scenarios adjustment leak locator inlet pressure, thus can realize gas flow control;
2) the digitizing suction gun of the present invention's design achieves remote access and the control of leak locator by devising control circuit system, handled easily personnel can carry out leak locator remote data acquisition, and can realize the Long-distance Control of leak locator;
3) the digitizing suction gun of the present invention's design devises touch LCD screen, operating personnel can be operated by touch-screen easily, and, leak locator state and data can be shown intuitively by liquid crystal display, and can log history leak rate data, render history leak rate curve;
4) the digitizing suction gun of the present invention's design adopts engineering plastics shell, not only ensure that the intensity of shell, and decreases the weight of digitizing suction gun, make leak detection process operation lighter;
5) the digitizing suction gun of the present invention's design adopts integral manifold design, and communication and feed cable and gas piping are made one, thus avoids the alternation sum confusion that various pipeline in operating process of hunting leak causes.
Accompanying drawing explanation
Fig. 1 is the structural representation of suction gun in prior art.
Fig. 2 is the digitizing suction gun system schematic for single-point leak detection of the present invention.
Fig. 3 is digitizing suction gun structural representation of the present invention.
Wherein, 1 flexible pipe; 2 medical needles; 3 suction gun bars; 4 front chamber; 5 middle chambers; 6 rear chamber; 7 suction gun handles; 8 representative digit suction gun bodies; 9 represent remote controlled leak locator; 10 represent constant voltage dc source; 11 represent electric integrated pipeline; 12 represent communication and feed cable; 13 represent gas circuit flexible pipe; 14 represent direct current of voltage regulation source power cable; 15 represent leak locator communication interface; 16 represent leak locator gas sample interface; 17 represent suction gun bar; 18 represent flow regulator; 19 represent touch LCD screen; 20 represent control circuit board; 21 represent tracheae; 22 represent cable; 23 represent the integrated pipeline that tracheae and cable are combined; 24 represent engineering plastics shell.
Embodiment
What below introduce is embodiment as content of the present invention, further illustrates described content of the present invention below by embodiment.Certainly, describe the content that following detailed description is only example different aspect of the present invention, and should not be construed as the restriction scope of the invention.
As shown in Figure 2, digitizing suction gun system for single-point leak detection of the present invention comprises digitizing suction gun 8, the leak locator 9 of Long-distance Control is carried out by RS232 agreement, D.C. regulated power supply 10, communication and feed cable 12 and air hose 13, wherein communication and feed cable 12 form integrated pipeline 11 with air hose 13, integrated pipeline 11 at leak locator link separately, air hose 13 is connected with leak locator gas sample interface 16, communication and feed cable 12 are electrically connected with the communication interface of leak locator, communication and feed cable 12 are also connected with D.C. regulated power supply 10.
In a specific embodiment, digitizing suction gun is made up of suction gun body, control circuit board, touch LCD screen, gas piping, communication and feed cable and engineering plastics shell.Suction gun body is connected with air hose, and the gas sample interface of the other end access leak locator of air hose, realizes the leakage rate measurement of measured piece.Suction gun body has flow regulating function, can regulate leak locator inlet pressure.Control circuit board in digitizing suction gun is realized and the serial communication of leak locator by Single Chip Microcomputer (SCM) system, and digitizing suction gun sends the state of instructions query leak locator, parameter and leak rate data at a certain time interval.Leak detection sends corresponding data by serial ports after receiving query statement.Single Chip Microcomputer (SCM) system on control circuit board is resolved according to communication protocol after receiving data, obtains the state of leak locator, parameter and leak rate data and is presented in liquid crystal display.When operating personnel need to control leak locator, can the response option of point touching liquid crystal display.The operation of the Single Chip Microcomputer (SCM) system response user in control circuit board, and send corresponding steering order to leak locator by serial ports, thus realize Long-distance Control.
The digitizing suction gun of the present invention's design, can by the flow control valve adjustment leak locator inlet pressure of suction gun body in single-point leak detection process; Leak locator smells spy by gas piping to position to be detected; Digitizing suction gun is the state of real-time query leak locator and leak rate information then, and show.When user needs to control leak locator, operate accordingly by touch LCD screen.
The digitizing suction gun invented herein carries out serial communication by control circuit board and leak locator, and the Single Chip Microcomputer (SCM) system on control circuit board sends instruction at a certain time interval by timer, inquires about the state of leak locator, parameter and leakage rate measurement data.After leak locator receives instruction, send corresponding data to digitizing suction gun, Single Chip Microcomputer (SCM) system is resolved data, and the state of leak locator, parameter and leak rate data is shown on touch LCD screen.When operating personnel need to control leak locator, can be operated accordingly by point touching screen.Now, the operation of single-chip microcomputer relative users, and send corresponding steering order in leak locator, realize the Long-distance Control to leak locator.
Although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we conception according to the present invention can carry out various equivalence change and amendment to above-mentioned embodiment; its function produced do not exceed that instructions and accompanying drawing contain yet spiritual time, all should within protection scope of the present invention.
Claims (4)
1. the digitizing suction gun system for single-point leak detection, comprise digitizing suction gun, the leak locator carrying out Long-distance Control by RS232 agreement, D.C. regulated power supply, communication and feed cable and air hose, wherein communication and feed cable and air hose form integrated pipeline, integrated pipeline at leak locator link separately, air hose is connected with leak locator gas sample interface, communication and feed cable are electrically connected with the communication interface of leak locator, and communication and feed cable are also electrically connected with D.C. regulated power supply.
2. digitizing suction gun system as claimed in claim 1, wherein, digitizing suction gun is primarily of the suction gun body of regulating flow quantity, control circuit board, touch LCD screen and engineering plastics shell composition.
3. digitizing suction gun system as claimed in claim 1, wherein, suction gun body and control circuit board, touch LCD shield realize electrical isolation every.
4. the digitizing suction gun system as described in any one of claim 1-3, wherein, suction gun body is connected with air hose, and communication and feed cable are electrically connected with the control circuit board in suction gun body, and air hose and communication and feed cable make integrated pipeline in digitizing suction gun lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660437.8A CN104374531A (en) | 2014-11-18 | 2014-11-18 | Digital suction gun for single-point leakage detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660437.8A CN104374531A (en) | 2014-11-18 | 2014-11-18 | Digital suction gun for single-point leakage detection |
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| Publication Number | Publication Date |
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| CN104374531A true CN104374531A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410660437.8A Pending CN104374531A (en) | 2014-11-18 | 2014-11-18 | Digital suction gun for single-point leakage detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112223A (en) * | 2021-11-12 | 2022-03-01 | 广东核电合营有限公司 | Nuclear condenser SF6Leak detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133310A (en) * | 2005-03-03 | 2008-02-27 | 因菲康有限公司 | Leak indicator comprising a sniffer probe |
| US20090120165A1 (en) * | 2005-07-20 | 2009-05-14 | Peter Lang | Sampling Leak Detector |
| US7640791B2 (en) * | 2004-12-10 | 2010-01-05 | Inficon Gmbh | Leak detecting device |
| CN102759433A (en) * | 2012-07-23 | 2012-10-31 | 北京卫星环境工程研究所 | Controllable suction gun, as well as leak detection system and leak detection method adopting same |
-
2014
- 2014-11-18 CN CN201410660437.8A patent/CN104374531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7640791B2 (en) * | 2004-12-10 | 2010-01-05 | Inficon Gmbh | Leak detecting device |
| CN101133310A (en) * | 2005-03-03 | 2008-02-27 | 因菲康有限公司 | Leak indicator comprising a sniffer probe |
| US20090120165A1 (en) * | 2005-07-20 | 2009-05-14 | Peter Lang | Sampling Leak Detector |
| CN102759433A (en) * | 2012-07-23 | 2012-10-31 | 北京卫星环境工程研究所 | Controllable suction gun, as well as leak detection system and leak detection method adopting same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112223A (en) * | 2021-11-12 | 2022-03-01 | 广东核电合营有限公司 | Nuclear condenser SF6Leak detector |
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Application publication date: 20150225 |
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