CN206274315U - Improve the device of the X fluorescence spectrometer vacuum system speed of evacuation - Google Patents
Improve the device of the X fluorescence spectrometer vacuum system speed of evacuation Download PDFInfo
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- CN206274315U CN206274315U CN201621158305.6U CN201621158305U CN206274315U CN 206274315 U CN206274315 U CN 206274315U CN 201621158305 U CN201621158305 U CN 201621158305U CN 206274315 U CN206274315 U CN 206274315U
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Abstract
The utility model provides a kind of device for improving the X fluorescence spectrometer vacuum system speed of evacuation, the X fluorescence spectrometer includes the sample room for storing samples, the vacuum system includes the gas circuit of the vacuum air pump and the connection vacuum air pump and the sample room for being evacuated, the gas circuit includes the first pipeline and the second pipeline that are connected in parallel with each other, the bore of the bore more than second pipeline of first pipeline；Described device includes：Power supply；Energization delay relay；It is separately positioned on the first magnetic valve and the second magnetic valve on first pipeline and second pipeline；Wherein, the coil of second magnetic valve, the coil of the energization delay relay are connected in the two ends of the power supply in parallel；The coil of first magnetic valve is connected in the two ends of the power supply in parallel after being connected in series with the normally opened contact of the energization delay relay.The cycle of sample analysis detection can be shortened while equipment stable operation is ensured.
Description
Technical field
The utility model is related to a kind of device for improving the X fluorescence spectrometer vacuum system speed of evacuation.
Background technology
With the increase of X line wavelengths in X fluorescence spectrometer, the sink effect of air is also bigger, is carrying out light element point
Very big error can be caused during analysis measurement, therefore during X spectral line conduct light paths necessarily be in vacuum environment.
Due to the requirement of smelting process for production of iron and steel, it is desirable to which it is short that the analysis detection time of X fluorescence spectrometer is tried one's best.X is glimmering
Time main the carrying by sample that the complete sample analysis detection process of photothermal spectroscopic analyzer one is spent conveys（Account for total time
13.6%）, sample vacuum suction（Account for the 50.8% of total time）, sample analysis measurement integration（Account for the 33.9% of total time）And measurement
Data processing is transmitted（Account for the 1.7% of total time）Four parts constitute.Wherein sample is carried conveying, sample analysis measurement integration and is surveyed
Amount data processing transmits the possibility that the holding time of three parts has been reduced without compression for rigid time, and sample vacuum pumpdown time is accounted for
The major part of total time, is substantially shorter the overall time of analysis detection if being reduced to this period.It can be seen that, sample enters
Enter the speed of evacuation height and time length of X fluorescence spectrometer vacuum system sample room, be that influence X fluorescence spectrometer is entirely analyzed
The key factor of detection time length.
The exhaust capacity of vacuum is heavily dependent on the performance of vacuum system intermediate pump, if vavuum pump pumping energy
Power is low, has air gap steam after being processed along with sample itself, to be smoked in sample room and be lot more time to reach analysis detection
Vacuum setting, must cause sample analysis to detect and drag the cycle.The performance indications for improving vavuum pump pumping can significantly shorten sample
Product are in sample vacuum chamber pumpdown time.
Additionally, the raising of exhaust capacity can accelerate to analyze detection speed, but with and come being sample in X fluorescence spectrometer
Pressure change is increased in sample room, and inside and outside differential pressure drastically changes to easily cause sample broke and surface and peel off and splashes, vacuum system
It is contaminated causing after faults frequent, and sample broke when check fee is analyzed in sample preparation again again and causes delay.
Utility model content
The purpose of this utility model is, there is provided one kind can effectively solve X fluorescence spectrometer and improve vacuum suction speed
Afterwards, the technical scheme of the abnormal conditions such as the sample broke of appearance and peeling splashing, shortens while equipment stable operation is ensured
The cycle of sample analysis detection.
The device for improving the X fluorescence spectrometer vacuum system speed of evacuation of the present utility model, the X fluorescence spectrometer includes
For the sample room of storing samples, the vacuum system is included for the vacuum air pump to sample room pumping and connection institute
State the exhaust pipe of vacuum air pump and the sample room, the exhaust pipe includes the first pipeline being connected in parallel with each other and the
Two pipelines, the bore of the bore more than second pipeline of first pipeline；Described device includes：Power supply；On-delay after
Electrical equipment；It is separately positioned on the first magnetic valve and the second magnetic valve on first pipeline and second pipeline；Wherein, it is described
The coil of the second magnetic valve, the coil of the energization delay relay are connected in the two ends of the power supply in parallel；Described first
The coil of magnetic valve is connected in the two of the power supply in parallel after being connected in series with the normally opened contact of the energization delay relay
End.
Preferably, the delay time of the energization delay relay is configured to 3~9 seconds, and the bore of first pipeline is
20~25mm, the bore of second pipeline is 2~6mm.
The device for improving the X fluorescence spectrometer vacuum system speed of evacuation of the present utility model, by by the exhaust pipe
It is designed as two pipelines in parallel of different bores and controls two opening times of pipeline respectively, sample room can be controlled
Pressure changes in order, solves quick demand that production technology detects to sample analysis and sample ruptures chip under pressure drastic change
Ejecta pollution sample room and the contradiction of vacuum line, it is ensured that the normal reliable operation of equipment.
Brief description of the drawings
Fig. 1 is the structural representation of X fluorescence spectrometer of the present utility model and its vacuum system；
Fig. 2 is the structural representation of the device of raising X fluorescence spectrometer of the present utility model and its vacuum system speed of evacuation
Figure；
Fig. 3 be using it is of the present utility model raising X fluorescence spectrometer and its vacuum system speed of evacuation device after, sample
Product house vacuum degree variation diagram；
Fig. 4 is each pipeline in the device for improving X fluorescence spectrometer and its vacuum system speed of evacuation of the present utility model
Opening and closing timing diagram.
Specific embodiment
With reference to the accompanying drawings and detailed description to raising X fluorescence spectrometer vacuum system pumping speed of the present utility model
The device of degree is described in further detail, but not as to restriction of the present utility model.
The device for improving the X fluorescence spectrometer vacuum system speed of evacuation of the present utility model, the X fluorescence spectrum used for it
Instrument and its vacuum system are as shown in Figure 1.X fluorescence spectrometer includes being penetrated for the sample room 2 of storing samples 1 and light-source system X
Spool 10 and light-splitting chamber 9.
The vacuum system of X fluorescence spectrometer is included for the vacuum air pump 8 to the pumping of sample room 2 and connection vacuum suction
Pump 8 and the exhaust pipe of sample room 2, can also include being arranged on exhaust pipe the vacuum metric 3 for measurement of vacuum.Take out
Air pipe includes the first pipeline 6 and the second pipeline 7 that are connected in parallel with each other, wherein the bore of the first pipeline 6 is more than the second pipeline 7
Bore.
Referring to Fig. 1 and Fig. 2, the device of the raising X fluorescence spectrometer vacuum system speed of evacuation of the present utility model includes：Electricity
Source 11, energization delay relay（Not shown in figure）, the first magnetic valve 4 for being separately positioned on the first pipeline 6 and the second pipeline 7
With the second magnetic valve 5.Wherein, the coil 15 of the second magnetic valve and the coil 12 of energization delay relay are connected in parallel
The two ends of power supply 11；The coil 14 of the first magnetic valve is in parallel after being connected in series with the normally opened contact 13 of energization delay relay to be connected
It is connected on the two ends of power supply 11.
The work of the device of the raising X fluorescence spectrometer vacuum system speed of evacuation of the present utility model is described with reference to Fig. 4
Make principle.
When not having input voltage, the first pipeline and the second pipeline are turned off, and now vacuum air pump is not to sample room
It is evacuated.
Due to the first pipeline（Heavy caliber pipeline）The first magnetic valve coil residing for branch road in energization delay relay
Normally opened contact in the presence of be off state, therefore the first magnetic valve is closed, i.e., the first pipeline within the t1 times
Close.And due to the second pipeline（Small-bore pipeline）The coil of the second magnetic valve there is input voltage to start to be powered in power supply,
Therefore the second magnetic valve has input voltage to start to be at opening in power supply, i.e., the second pipeline is opened within the t1 times.Cause
This, within the t1 times, in the presence of energization delay relay, vacuum air pump passes through the second pipeline（Small-bore pipeline）To sample
Product room carries out low speed pumping.The present apparatus ensure that the appropriate pumping speed reduced in sample room when just starting to be evacuated sample
Degree, controls the sample room starting speed of evacuation to be allowed to slow down in the way of small-bore pipeline pumping limitation flow, prevents because in sample
Portion causes very much sample burst or spalling of oxide layer to splash soon with external pressure difference rate of change.
When the delay time that energization delay relay is set passes through, i.e. the t1 times pass through, energization delay relay it is normally opened
The closing of contact so that the coil electricity of the first magnetic valve, first opens, so that the first pipeline is opened.And the shape of the second magnetic valve
State does not change, therefore the state of the second pipeline also keeps it turned on.Therefore, in the t2 times after the t1 times pass through, vacuum
Aspiration pump passes through the first pipeline simultaneously（Heavy caliber pipeline）With the second pipeline（Small-bore pipeline）Fast pumpdown is carried out to sample room.
Terminate to the t2 times, i.e., when the vacuum in sample room reaches requirement, power cut-off, the first magnetic valve and second electricity
The coil of magnet valve is while dead electricity, the first pipeline and the second pipeline are turned off.
The device for improving the X fluorescence spectrometer vacuum system speed of evacuation of the present utility model, enabled in a period of time
After the pumping of sample room low speed, have passed through after sample is easily broken and peels off the splash hazards stage, by the mouth of vacuum suction pipeline
Footpath converts, then is switched to heavy caliber pipeline and carries out fast pump, has so both prevented cracking and flaking off for sample, can significantly carry again
The speed of evacuation high, effectively solves the contradiction that the speed and sample broke of X fluorescence spectrometer on-the-spot sample analysis detection are splashed.
From above operation principle, in the dress of the raising X fluorescence spectrometer vacuum system speed of evacuation of the present utility model
In putting, the configuration of the delay time of energization delay relay is most important.Can be according to actual press strengthi, the Surface Oxygen of sample
Change the intensity and possible moist degree of attachment, delay time parameter t1 is determined through overtesting.
As shown in figure 3, being sample vacuum chamber degree change curve.The sample of pressed powder and molten iron enters X fluorescence spectrometer
Sample room, due to exhaust capacity increase carry out vacuum suction when sample exterior air pressure change speed also become big, according to the sample of Fig. 3
Product room vacuum change curve, filters out the dangerous pumpdown time section for easily causing sample broke and peeling off, i.e., the t1 times in figure
Section, the delay time parameter t1 of optimization energization delay relay.According to experimental result, the delay time of energization delay relay
3-9 seconds is configured to as low speed decompression air aspiration stage, sample broke and peeling can be effectively prevented.
Preferably, the bore of the first pipeline is 20~25mm, and the bore of the second pipeline is 2~6mm.
Furthermore, it is possible in the feelings of the inside installing space, pipe interface matching and electrical capacity for considering X fluorescence spectrometer
Under condition, using Large Copacity, the vacuum air pump of the speed of evacuation high, 200 liters/min of oily blade is such as not less than using the speed of evacuation
Formula vavuum pump, its exhaust capacity is 1.5 times of original vacuum air pump.Because the speed of evacuation of vacuum air pump is improved, with original
Negative pressure is formed faster in sample room when just starting pumping to compare, and pressed powder sample interior has the air gap or molten iron sample
When there is loose oxide layer on surface, easily crushes or peel off under the unexpected external and internal pressure difference effect for being formed and splash, cause X-fluorescence light
The pollution of spectrometer vacuum system, blocking, cause instrument and equipment failure, therefore improve X-fluorescence light with greater need for using of the present utility model
The device of the spectrometer vacuum system speed of evacuation.
The utility model appropriate speed of evacuation reduced in sample room when just starting to be evacuated sample, with small-bore pipeline
Pumping limitation flow mode controls the sample room starting speed of evacuation to be allowed to slow down, and prevents because of sample interior and external pressure difference change
Rate causes very much sample burst or spalling of oxide layer to splash soon.
Above specific embodiment is only illustrative embodiments of the present utility model, it is impossible to new for limiting this practicality
Type, protection domain of the present utility model is defined by the claims.Those skilled in the art can be in essence of the present utility model
In protection domain, various modifications or equivalent are made to the utility model, these modifications or equivalent also should be regarded as
In protection domain of the present utility model.
Claims (3)
1. a kind of device for improving the X fluorescence spectrometer vacuum system speed of evacuation, the X fluorescence spectrometer is included for depositing sample
The sample room of product, the vacuum system is included for the vacuum air pump to sample room pumping and the connection vacuum suction
Pump and the exhaust pipe of the sample room, it is characterised in that
The exhaust pipe includes the first pipeline and the second pipeline that are connected in parallel with each other, and the bore of first pipeline is more than institute
State the bore of the second pipeline；
Described device includes：
Power supply；
Energization delay relay；
It is separately positioned on the first magnetic valve and the second magnetic valve on first pipeline and second pipeline；Wherein,
The coil of second magnetic valve, the coil of the energization delay relay are connected in the two ends of the power supply in parallel；
The coil of first magnetic valve is connected in parallel after being connected in series with the normally opened contact of the energization delay relay
The two ends of the power supply.
2. it is according to claim 1 improve the X fluorescence spectrometer vacuum system speed of evacuation device, it is characterised in that institute
The delay time for stating energization delay relay is configured to 3~9 seconds.
3. it is according to claim 1 improve the X fluorescence spectrometer vacuum system speed of evacuation device, it is characterised in that institute
The bore of the first pipeline is stated for 20~25mm, the bore of second pipeline is 2~6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158305.6U CN206274315U (en) | 2016-10-31 | 2016-10-31 | Improve the device of the X fluorescence spectrometer vacuum system speed of evacuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158305.6U CN206274315U (en) | 2016-10-31 | 2016-10-31 | Improve the device of the X fluorescence spectrometer vacuum system speed of evacuation |
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| Publication Number | Publication Date |
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| CN206274315U true CN206274315U (en) | 2017-06-23 |
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ID=59062305
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621158305.6U Active CN206274315U (en) | 2016-10-31 | 2016-10-31 | Improve the device of the X fluorescence spectrometer vacuum system speed of evacuation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345047A (en) * | 2019-08-22 | 2019-10-18 | 中车青岛四方车辆研究所有限公司 | Vacuum system exhaust noise silencing method, silencing means and vacuum system |
| US20220260506A1 (en) * | 2020-05-18 | 2022-08-18 | Rigaku Corporation | X-ray fluorescence spectrometer |
-
2016
- 2016-10-31 CN CN201621158305.6U patent/CN206274315U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345047A (en) * | 2019-08-22 | 2019-10-18 | 中车青岛四方车辆研究所有限公司 | Vacuum system exhaust noise silencing method, silencing means and vacuum system |
| US20220260506A1 (en) * | 2020-05-18 | 2022-08-18 | Rigaku Corporation | X-ray fluorescence spectrometer |
| US11513086B2 (en) * | 2020-05-18 | 2022-11-29 | Rigaku Corporation | X-ray fluorescence spectrometer |
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