CN103116177A - Proportional counter cleaning device and cleaning method - Google Patents
Proportional counter cleaning device and cleaning method Download PDFInfo
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- CN103116177A CN103116177A CN2013100484908A CN201310048490A CN103116177A CN 103116177 A CN103116177 A CN 103116177A CN 2013100484908 A CN2013100484908 A CN 2013100484908A CN 201310048490 A CN201310048490 A CN 201310048490A CN 103116177 A CN103116177 A CN 103116177A
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- cleaning device
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Abstract
The invention discloses a proportional counter cleaning device and a cleaning method, and relates to a brand-new cleaning technology. The proportional counter cleaning device and the cleaning method are applicable to cleaning of spectrograph particle detectors. The proportional counter cleaning device heats a particle detection wire to clean dirt attached on the particle detection wire, so that sensitivity of a detector is improved, maintenance cost can be saved effectively, and service life of the detector is prolonged.
Description
Technical field:
The present invention relates to the instrument internal cleaning technique, specifically be applicable to cleaning device and the cleaning method of flow gas and closed proportional counter.
Background technology:
Proportional counter is to produce ionization take certain gas and form the nuclear radiation detector that electric pulse is foundation under x-ray bombardment, long due to its life-span, volume is little and can work at normal temperatures and energy resolution is preferably arranged, and is the detector of wavelength dispersion X RF spectrometer indispensability.Still be widely used in energy dispersion XRF spectrometer.
In the X-fluorescence spectrometer, the quality of detector on the final measurement impact greatly.And the factor that affects detector performance mainly contains following several respects:
1, the gas density of detector itself and purity change;
2, detector is contaminated, as the detector internal dust, catches greasy dirt etc.;
3, detector interior metal thread tension descends.
All of these factors taken together all can make detector become " blunt ", and resolution and counting rate change, and can not satisfy user's use; The detector that need to more renew increases corresponding cost.
Proportional counter commonly used generally is divided into flow gas and closed, and is higher for counter internal request cleanliness, and the user generally can not install by realizing self disassembling, and producer also adopts disposable embedding welding.Counter for hydraulic performance decline can only be changed, and there is no the method for cleaning, so the proportional counter price comparison is expensive.
Summary of the invention:
In view of existing counter can not disassembly, cleaning problem, the object of the invention is to provide a kind of brand-new cleaning device that is applicable to flow gas, closed proportional counter and cleaning method.The present invention can clean to extend its serviceable life to counter under the prerequisite of not changing counter.
The technical solution used in the present invention is: a kind of proportional counter cleaning device, it comprises a microcontroller, described microcontroller and an on-off controller and power supply, pilot lamp, hummer are connected, there is power switch to control between described microcontroller and power supply, draw respectively on the positive and negative electrode of described on-off controller and pick out a wiring, described anodal wiring is connected with the negative pole of the detection silk of proportional counter, and described negative pole wiring is connected with the positive pole of the detection silk of proportional counter.
The control chip of described microcontroller employing PIC8 position model.
Described microcontroller the inside also has power supply conditioning chip and timer.
Described on-off controller adopts miniature dpdt relay.
Described pilot lamp has two, and one is power light, the another one relay indicating light.
A kind of cleaning method of proportional counter cleaning device uses aforementioned cleaning device, comprises the steps:
1) device connects: two wiring of cleaning device are connected with the detection silk of proportional counter, and the positive pole of cleaning device connects the negative pole of surveying silk, and the negative pole of cleaning device connects the positive pole of surveying silk;
2) turn on the power switch, apply the voltage of 2v left and right to counter by on-off controller, microcontroller automatically detects detector and whether cleaning device connects, if find not conducting of on-off controller, the proportional counter cisco unity malfunction is described, microcontroller can teletype command to on-off controller work; If the on-off controller conducting illustrates to connect normally, can carry out cleaning;
3) connect in normal situation, cleaning device began to clean after 3 seconds, and cleaning is completed in the hummer prompting of ringing simultaneously in Preset Time.
The described time of once cleaning was set as for 2 seconds.
The microcontroller acquiescence is once cleaned and is completed, in the situation that do not disconnect proportional counter and cleaning device electrical connection, and every 30 seconds repeated washing once.
Cleaning way of the present invention is physics mode, does not change its physical attribute of cleaned material, is intended to make in this way the foul of its surface attachment to come off.Cleaning device volume of the present invention is little, lightweight, good portability, and cleaning method of the present invention is novel unique, practical, operate simple and easyly, and each instrument user of service can learn to operate easily.Utilize cleaning method of the present invention and device, can easily extend detector serviceable life, avoided frequent replacing detector, reduced X-fluorescence spectrum use cost.
Description of drawings:
Fig. 1 is proportional counter cleaning device pie graph;
Fig. 2 is proportional counter cleaning device work connection layout;
Fig. 3 is the change in count curve map of proportional counter before and after cleaning.
Embodiment:
Illustrate cleaning method of the present invention and application apparatus below in conjunction with accompanying drawing.
The invention provides a kind of brand-new proportional counter cleaning device and cleaning method, it is to adopt electrothermal way to clean, and its cleaning principle is: utilize the interior silk of surveying of detector to have certain resistance, when having electric current to pass through, by electric power formula P=I
2R as can be known, detector can produce thermal effect and cause and survey the silk heating.The present invention studies show that, surveys a silk heating meeting and will be attached to the tiny dust sintering of surveying on silk and peel off, thereby make the dust that peels off along with the working gas that flows is discharged to the external world; Greasy dirt can evaporate under heating state, also can along with the working gas that flows be discharged to the external world, reach the purpose of cleaning the inner dust of proportional counter, greasy dirt with this.
Therefore, the present invention to counter energising heating, reaches different cleaning performance by controlling conduction time and frequency by means of a cleaning device.
This cleaning device mainly comprises following components: microcontroller 31, on-off controller 32, power supply 33, pilot lamp 34, hummer 35, wiring 36, power switch 37, shown in Figure 1: wherein, microcontroller 31 all is electrically connected to on-off controller 32, pilot lamp 34, hummer 35, and by power supply 33 power supplies, there is power switch 37 to control between power supply 33 and microcontroller 31.Microcontroller 31 can adopt the control chip of PIC8 position model, and 31 li of microcontrollers also have the power supply conditioning chip in addition.
On-off controller 32 connects proportional counter 1, and be specially: it is connected to detection silk 2 two ends of counter by two wiring 36, and the negative pole of wiring connects the positive pole of surveying silk 2, and the positive pole of wiring connects the negative pole of surveying silk 2, forms a series connection circuit, as shown in Figure 2.The effect of on-off controller 32 is for detector provides power supply and collection signal, can adopt miniature dpdt relay.
Whether microcontroller 31 is connected by the power supply that on-off controller 32 detects proportional counter 1, and whether fracture of wire damages to survey silk by the voltage detecting about power supply conditioning chip loading 2v, if in normal Standard resistance range, apply this voltage and carry out cleaning.If do not connect or the inner silk of surveying of detector damages, cleaning device can not worked.
The predeterminable scavenging period of microcontroller 31 and interval time, scavenging period is generally several seconds, is generally 30 seconds interval time; Perhaps do not establish interval time, be defaulted as cleaning once.In microcontroller 31, timer is arranged, self-clocking.
Pilot lamp 34 has two, and one is the power supply indication, and another one is as the work indication when the exact connect ion detector.
The hummer 35 prompting work of ringing begins, and finishes to ring after cleaning is completed.
When using this device to clean, concrete method of operating is:
1) at first two wiring 36 of cleaning device 3 are connected with the detection silk of proportional counter 1, by shown in Figure 2, the positive pole of cleaning device 3 connects the negative pole of proportional counter 1, and the negative pole of cleaning device 3 connects the positive pole of proportional counter 1;
2) turn on the power switch 37, and apply the voltage of about 2v to counter by on-off controller 32, whether microcontroller 31 automatically detects detector and cleaning device and connects, if find not conducting of on-off controller 32, proportional counter 1 cisco unity malfunction is described, microcontroller 31 can not worked to on-off controller 32 by teletype command; If on-off controller 32 conductings illustrate that instrument connects normal, can carry out cleaning;
3) in the normal situation of equipment connection, cleaning device will begin to clean after 3 preparatory stages in second, hummer 35 promptings of ringing simultaneously, and after the several seconds, cleaning is completed.In microcontroller, acquiescence is once to clean to complete, and is connected connection with cleaning device if do not disconnect proportional counter, every 30 seconds repeated washing once.
In order to the cleaning performance that proves apparatus of the present invention be the counting rate of proportional counter, before and after cleaning under the same test condition, counting rate obviously improves explanation and cleans effectively.Show in the once test that the gas proportional counter of testing Ca in the X-fluorescence spectrometer carries out as cleaning object, a contaminated gas proportional counter only has 8000 left and right to the Ca counting rate, as shown in Figure 3, and with cleaning device of the present invention, gap counter is carried out each 2s, after cleaning for 1 to 2 time, reload in the X-fluorescence spectrometer, the counting rate to same sample under the same test condition can reach more than 10000, has reached brand-new gas proportional counter to the counting rate standard of Ca.What Fig. 3 represented is the counting rate change curve that this gas proportional counter cleans front and back, counting rate before straight line end points 21 means and cleans, counting rate after end points 22 means and cleans.
But cleaning device on-line cleaning of the present invention also can be pulled down rear cleaning from instrument with counter integrated.Cleaning way is physics mode, is intended to make in this way the foul of its surface attachment to come off, and need not change the physical attribute of cleaned material.Cleaning device volume of the present invention is little, lightweight, good portability, and cleaning method of the present invention is novel unique, practical, operate simple and easyly, and each instrument user of service can learn to operate easily.Utilize cleaning method of the present invention and device, can easily continue detector serviceable life, avoided frequent replacing detector, reduced X-fluorescence spectral analysis cost.
Claims (8)
1. proportional counter cleaning device, it is characterized in that: it comprises a microcontroller, described microcontroller and an on-off controller and power supply, pilot lamp, hummer are connected, there is power switch to control between described microcontroller and power supply, draws respectively on the positive and negative electrode of described on-off controller and pick out a wiring; The anodal wiring of on-off controller is used for being connected with the negative pole of the detection silk of proportional counter, and the negative pole wiring of on-off controller is for being connected with the positive pole of the detection silk of proportional counter.
2. proportional counter cleaning device according to claim 1 is characterized in that: described microcontroller adopts the control chip of PIC8 position model.
3. proportional counter cleaning device according to claim 1 and 2, is characterized in that: be provided with power supply conditioning chip and timer in described microcontroller.
4. according to claim 1 and 2 or 3 described proportional counter cleaning devices, is characterized in that: the miniature dpdt relay of described on-off controller employing.
According to claim 1 to 4 arbitrary described proportional counter cleaning device, it is characterized in that: pilot lamp has two, one is power light, the another one relay indicating light.
6. utilizing the method for cleaning as one of claim 1 to 5 proportional counter cleaning device is to comprise the steps:
1) device connects: two wiring of cleaning device are connected with the detection silk of proportional counter, and the positive pole of cleaning device connects the negative pole of surveying silk, and the negative pole of cleaning device connects the positive pole of surveying silk;
2) turn on the power switch, apply the voltage of 2v left and right to counter by on-off controller, microcontroller automatically detects detector and whether cleaning device connects, if find not conducting of on-off controller, the proportional counter cisco unity malfunction is described, microcontroller can teletype command to on-off controller work; If the on-off controller conducting illustrates to connect normally, can carry out cleaning;
3) connect in normal situation, cleaning device began the direct ratio counter is cleaned after 3 seconds, and cleaning is completed in the hummer prompting of ringing simultaneously in Preset Time.
7. proportional counter cleaning method according to claim 6 is characterized in that: the time of once cleaning was set as for 2 seconds.
8. according to claim 6 or 7 described proportional counter cleaning methods is characterized in that: the microcontroller acquiescence is once cleaned and is completed, in the situation that do not disconnect proportional counter and cleaning device is electrically connected to, and every 30 seconds repeated washing once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048490.8A CN103116177B (en) | 2013-02-06 | 2013-02-06 | proportional counter cleaning device and cleaning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310048490.8A CN103116177B (en) | 2013-02-06 | 2013-02-06 | proportional counter cleaning device and cleaning method |
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| CN103116177A true CN103116177A (en) | 2013-05-22 |
| CN103116177B CN103116177B (en) | 2015-11-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911580A (en) * | 2016-04-19 | 2016-08-31 | 成都新核泰科科技有限公司 | Anti-interference water body radioactivity online real-time monitoring system |
| CN105929435A (en) * | 2016-04-19 | 2016-09-07 | 成都新核泰科科技有限公司 | Water radioactivity online real-time monitoring system |
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2013
- 2013-02-06 CN CN201310048490.8A patent/CN103116177B/en active Active
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| JPH05115858A (en) * | 1991-05-09 | 1993-05-14 | Orion Mach Co Ltd | Air cleaner |
| JPH05277420A (en) * | 1992-04-03 | 1993-10-26 | Honda Motor Co Ltd | Charge eliminating cleaning apparatus |
| JPH07227615A (en) * | 1994-02-17 | 1995-08-29 | Nippon Steel Corp | Vacuum arc descaling method |
| JPH07241269A (en) * | 1994-03-02 | 1995-09-19 | Techno Roll Kk | Tacky adhesive destaticizing and dust-removing roll and grounding electrode material |
| US6919672B2 (en) * | 2002-04-10 | 2005-07-19 | Applied Process Technologies, Inc. | Closed drift ion source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911580A (en) * | 2016-04-19 | 2016-08-31 | 成都新核泰科科技有限公司 | Anti-interference water body radioactivity online real-time monitoring system |
| CN105929435A (en) * | 2016-04-19 | 2016-09-07 | 成都新核泰科科技有限公司 | Water radioactivity online real-time monitoring system |
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| CN103116177B (en) | 2015-11-18 |
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