CN113960019A - Oil element device with double turntable electrode atomic emission spectrum - Google Patents
Oil element device with double turntable electrode atomic emission spectrum Download PDFInfo
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- CN113960019A CN113960019A CN202111246466.6A CN202111246466A CN113960019A CN 113960019 A CN113960019 A CN 113960019A CN 202111246466 A CN202111246466 A CN 202111246466A CN 113960019 A CN113960019 A CN 113960019A
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- electrode
- turntable
- oil
- conductive slip
- circular turntable
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- 238000000295 emission spectrum Methods 0.000 title claims abstract description 7
- 230000005284 excitation Effects 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000001636 atomic emission spectroscopy Methods 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 2
- 239000003921 oil Substances 0.000 description 33
- 238000001514 detection method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000010183 spectrum analysis Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
Abstract
The invention relates to a double-turntable electrode atomic emission spectrum oil element device which comprises a double-turntable structure, an oil container, two groups of motors, a conductive slip ring and a spectrometer. The double-turntable structure comprises two vertically-arranged circular turntable electrodes, the two circular turntable electrodes are respectively connected to a transmission mechanism of a corresponding motor through a stepped shaft, the conductive sliding ring comprises a fixed end and a free end connected with the stepped shaft, and a motor body of the upper circular turntable electrode and the fixed end of the conductive sliding ring are fixedly connected with the displacement guide rail and can vertically slide along with the displacement guide rail; the fixed ends of the motor body and the conductive slip ring of the upper circular turntable electrode are fixedly connected with the supporting plate, and the two stepped shafts are respectively connected to the free ends of the corresponding conductive slip rings; the fixed ends of the two conductive slip rings are respectively connected to the two arc excitation ends of the arc excitation device, and the large current generated by the arc excitation device is conducted to the two circular turntable electrodes through the conductive slip rings and the stepped shaft.
Description
Technical Field
The invention belongs to the field of spectral analysis. Specifically, the invention relates to a double-turntable atomic emission spectroscopy device which is used for detecting elements in oil.
Background
The oil detection has an important function in the aspect of fault detection, and can ensure the normal operation of important equipment such as an aircraft engine. The rotating electrode atomic emission spectroscopy technology is a mainstream method for analyzing oil elements at present because of simple operation, excellent performance, strong reliability and no need of pretreatment compared with other detection methods. Through the metal element granule that exists in the analysis fluid, detect its kind and quantity and can judge key information such as the degree of wear, wearing and tearing position and the fatigue condition of relevant part, can in time discover the trouble easy access, avoid shutting down the loss that causes. A rotating electrode atomic emission spectroscopy device is generally composed of a sample chamber, a circuit part and a spectrometer. The traditional sample chamber, namely the arc excitation device, consists of a rod-shaped electrode and a turntable electrode, and the discharge gap is easy to change due to continuous abrasion and consumption of the rod-shaped electrode in the excitation process. Meanwhile, a manual mounting error may also be caused due to frequent replacement of the rod-shaped electrode. The above two aspects cause insufficient excitation of the measured oil sample, which may result in erroneous results of the final spectral analysis.
Disclosure of Invention
The invention aims to design an atomic emission spectroscopy device with double turnplates, which replaces rod-shaped electrodes with circular turnplate electrodes, can effectively reduce the abrasion of the electrodes and further provides stable guarantee for the next spectral analysis. The technical scheme is as follows:
a double-turntable electrode atomic emission spectrum oil element device comprises a double-turntable structure, an oil container, two groups of motors, a conductive slip ring and a spectrometer. Wherein the content of the first and second substances,
the double-turntable structure comprises two vertically arranged circular turntable electrodes, one is an upper circular turntable electrode, the other is a lower circular turntable electrode, the two circular turntable electrodes are respectively connected to a transmission mechanism of a corresponding motor through a stepped shaft, the conductive sliding ring comprises a fixed end and a free end connected with the stepped shaft, and a motor body of the upper circular turntable electrode and the fixed end of the conductive sliding ring are fixedly connected with the displacement guide rail and can vertically slide along with the displacement guide rail; the fixed ends of the motor body and the conductive slip ring of the upper circular turntable electrode are fixedly connected with the supporting plate, and the two stepped shafts are respectively connected to the free ends of the corresponding conductive slip rings; the fixed ends of the two conductive slip rings are respectively connected to the two arc excitation ends of the arc excitation device, and the large current generated by the arc excitation device is conducted to the two circular turntable electrodes through the conductive slip rings and the stepped shaft.
Further, the motor is a hollow shaft motor.
Furthermore, the motor body of the upper circular turntable electrode and the fixed end of the conductive slip ring are fixedly connected to the displacement guide rail through an L-shaped fixing plate.
Further, the fixed end of the conductive slip ring is fixedly connected to the L-shaped fixing plate through a U-shaped buckle.
Furthermore, the oil container comprises an oil containing cover which is placed on the oil boat supporting block which can vertically slide up and down.
Furthermore, the tested oil sample containing various elements emits specific spectrum in the plasma state and is sent to the spectrometer.
The beneficial effects of the invention at least comprise: (1) the rod-shaped electrode is replaced by the upper circular turntable electrode, so that the abrasion of the electrode can be effectively reduced, and further, stable guarantee is provided for the next spectral analysis. (2) Go up circular carousel electrode and can conveniently remove along with motor body in vertical direction to conveniently adjust the clearance size between two carousels.
Drawings
Fig. 1 is a schematic structural diagram of a double-turntable electrode atomic emission spectrum oil elemental device.
1 is a connecting plate, and the connecting plate,
2 is a connecting bolt, and the bolt is a bolt,
3 is an L-shaped fixed plate which is provided with a plurality of fixing holes,
4 is a U-shaped buckle, and the U-shaped buckle is arranged on the bracket,
5 is a conductive slip ring, and the conductive slip ring,
the number 6 is a supporting plate, and the supporting plate,
7 is a hollow shaft motor which is provided with a hollow shaft,
the number 8 is a transmission mechanism, and the transmission mechanism,
9 is an L-shaped corner brace,
10 is an oil boat supporting block which is provided with a supporting block,
the oil containing cover 11 is a cover for containing oil,
12 is a lower circular turntable electrode,
13 is an upper circular turntable electrode,
the reference numeral 14 is a step axis,
and 16 is a displacement guide rail.
Fig. 2 is a diagram of an oil element on-site detection system. The device mainly comprises 4 parts, namely a double turntable structure part, an electric arc excitation part, a light path part and an image acquisition and processing part. The device mainly comprises the following parts:
the structure 17 is a double-turntable structure,
18 is an oil containing cover (containing oil liquid),
20 is a spectroscope
21 is a spectral collector, which is,
the reference numeral 22 is an optical fiber,
the reference numeral 23 is a spectrometer,
the reference numeral 24 is a camera, which,
the reference numeral 25 is a computer,
26 is a screen (for displaying a spectral image),
and 27 is an arc ignition device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The specific embodiments described herein are merely illustrative of the present invention and do not limit the scope of the invention.
As shown in figure 1, the technical scheme adopted by the invention is a double-turntable electrode atomic emission spectrum oil liquid element device. The double turntables are vertically arranged up and down, the hollow shaft motor 7 fixed on the L-shaped fixing plate 3, the step shaft 14 and the upper circular turntable electrode 13 can vertically slide up and down through the displacement guide rail 16 through the connecting plate 1 and the connecting bolt 2, and the size of a gap between the double turntables is convenient to adjust. The lower circular turntable electrode 12 rotates to send the sample oil to be detected to the gap between the two circular turntable electrodes from the oil containing cover 11. The actual distance of the discharge gap is the difference between the vertical distance of the two vertically arranged shafts and the turntable electrode. Wherein, hold the flourishing oil cover 11 that detects the oil appearance, place in can be vertical gliding oil boat tray 10 upper surfaces from top to bottom, the rotating electrode of being convenient for sends fluid to the clearance of two carousels and carries out "burn the appearance". In order to reduce the space, a hollow shaft motor 7, which is embodied in the form of SDM4625W from schroeder, is used, the hollow shaft motor 7 rotating a stepped shaft 14 via a transmission 8. The device adopts a conductive slip ring, which is a precise transmission device for realizing the current, data signal or image and power transmission of two relative rotating mechanisms, is used for 360-degree unlimited continuous rotation, and transmits a large-current signal and a data signal from an excitation circuit to a circular turntable electrode. The conductive slip ring mainly comprises a rotating part and a static part. The rotating part is connected with the rotating structure of the equipment and rotates along with the rotating structure, and is called as a free end; the stationary part is connected to one end of a fixed structure of the device, called the "fixed end". The conductive slip ring 5 is fixed on the L-shaped fixing plate 3 through the U-shaped buckle 4, one end of the stepped shaft 14 is connected with the upper circular turntable electrode 13, the other end of the stepped shaft is connected to the free end of the conductive slip ring 5 through threads, and the fixed end of the conductive slip ring 5 is connected with the arc excitation device 27. The large current generated by the arc excitation device 27 is conducted to the upper circular turntable electrode 13 through the conductive slip ring 5 and the stepped shaft 14, and high voltage is generated in the gap of the double turntables, so that the measured oil sample is plasmatized. The oil sample to be tested containing various elements emits specific spectrum in plasma state, and the specific spectrum is transmitted to an optical system of the spectrometer 23 through the optical fiber 22, so that the specific spectrum can be effectively analyzed and distinguished, and meanwhile, the type and the approximate content of the elements can be directly determined through software processing connected to the computer 25.
The rotating speed of the rotating disc driven by the hollow shaft motor is assumed to be n min/r, the abrasion degree of the electrode per minute is a, the radius of the electrode of the circular rotating disc is r, and the gap between the two circular rotating discs is d initially. In the conventional rod-circular turntable electrode structure (in the figure, the upper circular turntable electrode 13 is replaced by a rod-shaped electrode), after one minute, the discharge gap is
D1＝d+a
The discharge gap is formed by using a double turntable electrode structure
Since there are fixed circular turntable electrodes in both devices, these parts cancel each other out and do not account for them. By simple calculation, D can be found2＜＜D1Therefore, the structure of the double rotating discs can avoid errors caused by frequent replacement of the rod electrodes.
After the circuit is debugged and the circular turntable electrode is installed, the lubricating oil with detection is taken and placed in the disposable oil containing cover 11. After the whole device is electrified, the hollow shaft motor 7 drives the transmission mechanism 8 to further drive the stepped shaft 14 to rotate, the lower circular turntable electrode 12 is driven by the stepped shaft 14 to start to rotate, and the measured oil sample in the oil containing cover 11 is conveyed to the gap of the double loading discs. The high frequency capacitor in the arc ignition device 27 charges the electrodes to create a large potential difference between the double rotors, and high voltage discharges occur in the gap between the double rotors to "burn" the sample oil. The sample oil is gasified and plasmatized under the action of high-temperature electric arc, and the plasmatized measured oil sample is excited to obtain a specific spectrum. The excited specific spectrum is collected by a spectrum collector 21, collected by a spectrometer 23 through an optical fiber 22, analyzed and calculated by a computer 25, and finally the metal elements contained in the measured oil sample are determined. The failure part and the damage condition can be analyzed through the metal elements.
Claims (6)
1. A double-turntable electrode atomic emission spectrum oil element device comprises a double-turntable structure, an oil container, two groups of motors, a conductive slip ring and a spectrometer. Wherein the content of the first and second substances,
the double-turntable structure comprises two vertically arranged circular turntable electrodes, one is an upper circular turntable electrode, the other is a lower circular turntable electrode, the two circular turntable electrodes are respectively connected to a transmission mechanism of a corresponding motor through a stepped shaft, the conductive sliding ring comprises a fixed end and a free end connected with the stepped shaft, and a motor body of the upper circular turntable electrode and the fixed end of the conductive sliding ring are fixedly connected with the displacement guide rail and can vertically slide along with the displacement guide rail; the fixed ends of the motor body and the conductive slip ring of the upper circular turntable electrode are fixedly connected with the supporting plate, and the two stepped shafts are respectively connected to the free ends of the corresponding conductive slip rings; the fixed ends of the two conductive slip rings are respectively connected to the two arc excitation ends of the arc excitation device, and the large current generated by the arc excitation device is conducted to the two circular turntable electrodes through the conductive slip rings and the stepped shaft.
2. The dual turret electrode atomic emission spectroscopy oil elemental device of claim 1, wherein the motor is a hollow shaft motor.
3. The dual-turntable electrode atomic emission spectroscopy oil elemental device of claim 1, wherein the fixed ends of the motor body and the conductive slip ring of the upper circular turntable electrode are fixedly connected to the displacement guide rail through an L-shaped fixing plate.
4. The dual-turntable electrode atomic emission spectroscopy oil elemental device of claim 1, wherein a fixed end of the conductive slip ring is fixedly connected to the L-shaped fixing plate through a U-shaped buckle.
5. The apparatus of claim 1, wherein the oil container comprises an oil cap disposed on a boat tray that can slide vertically up and down.
6. The dual turret electrode atomic emission spectroscopy oil elemental device of claim 1, wherein the measured oil sample containing various elements emits a specific spectrum in a plasma state to be sent to the spectrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246466.6A CN113960019A (en) | 2021-10-26 | 2021-10-26 | Oil element device with double turntable electrode atomic emission spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246466.6A CN113960019A (en) | 2021-10-26 | 2021-10-26 | Oil element device with double turntable electrode atomic emission spectrum |
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| Publication Number | Publication Date |
|---|---|
| CN113960019A true CN113960019A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111246466.6A Pending CN113960019A (en) | 2021-10-26 | 2021-10-26 | Oil element device with double turntable electrode atomic emission spectrum |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US20080187105A1 (en) * | 2005-05-19 | 2008-08-07 | Koninklijke Philips Electronics, N.V. | Gas Discharge Source, in Particular for Euv Radiation |
| JP2009104924A (en) * | 2007-10-24 | 2009-05-14 | Ushio Inc | Extreme ultraviolet light source device |
| JP2009111298A (en) * | 2007-10-31 | 2009-05-21 | Ushio Inc | Extreme ultraviolet light source unit |
| CN103115915A (en) * | 2013-01-30 | 2013-05-22 | 中国广州分析测试中心 | Special oil analysis device based on gathered optical fiber signal transmission and double-layer multi-CCD (Charge Coupled Device) detection |
| CN205027667U (en) * | 2015-09-21 | 2016-02-10 | 中国计量学院 | Atomic emission spectroscopy trigger device based on rotating disk electrode method |
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| CN110823862A (en) * | 2019-11-18 | 2020-02-21 | 天津大学 | Oil element detection method and device based on image-assisted atomic emission spectroscopy |
-
2021
- 2021-10-26 CN CN202111246466.6A patent/CN113960019A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| GB933677A (en) * | 1961-03-31 | 1963-08-08 | Chirana Praha | Improvements in or relating to devices for the spectrum analysis of liquids |
| US20080187105A1 (en) * | 2005-05-19 | 2008-08-07 | Koninklijke Philips Electronics, N.V. | Gas Discharge Source, in Particular for Euv Radiation |
| JP2007200919A (en) * | 2006-01-23 | 2007-08-09 | Ushio Inc | Extreme ultraviolet light source equipment |
| JP2009104924A (en) * | 2007-10-24 | 2009-05-14 | Ushio Inc | Extreme ultraviolet light source device |
| JP2009111298A (en) * | 2007-10-31 | 2009-05-21 | Ushio Inc | Extreme ultraviolet light source unit |
| CN103115915A (en) * | 2013-01-30 | 2013-05-22 | 中国广州分析测试中心 | Special oil analysis device based on gathered optical fiber signal transmission and double-layer multi-CCD (Charge Coupled Device) detection |
| US20160295674A1 (en) * | 2015-03-31 | 2016-10-06 | Ushio Denki Kabushiki Kaisha | Device for emitting extreme ultraviolet light |
| CN205027667U (en) * | 2015-09-21 | 2016-02-10 | 中国计量学院 | Atomic emission spectroscopy trigger device based on rotating disk electrode method |
| CN105675584A (en) * | 2016-01-26 | 2016-06-15 | 张继勇 | Electric arc atomic emission element spectrometer and control method thereof |
| CN110823862A (en) * | 2019-11-18 | 2020-02-21 | 天津大学 | Oil element detection method and device based on image-assisted atomic emission spectroscopy |
Non-Patent Citations (1)
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