WO2016095787A1 - X-ray fluorescence spectrum analyzer - Google Patents

X-ray fluorescence spectrum analyzer Download PDF

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Publication number
WO2016095787A1
WO2016095787A1 PCT/CN2015/097339 CN2015097339W WO2016095787A1 WO 2016095787 A1 WO2016095787 A1 WO 2016095787A1 CN 2015097339 W CN2015097339 W CN 2015097339W WO 2016095787 A1 WO2016095787 A1 WO 2016095787A1
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Prior art keywords
cup
vacuum chamber
seat
ray fluorescence
disposed
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PCT/CN2015/097339
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French (fr)
Chinese (zh)
Inventor
韩晓朋
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深圳市善时仪器有限公司
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Publication of WO2016095787A1 publication Critical patent/WO2016095787A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence

Definitions

  • the present invention relates to an X-ray fluorescence spectrometer, and more particularly to an X-ray fluorescence spectrometer for analyzing liquid or powder samples.
  • the atoms of any element are composed of nuclei and electrons moving around the nucleus.
  • the electrons outside the nucleus are layered according to the level of their energy to form different energy levels. Therefore, a nucleus can have multiple energy levels.
  • the lowest energy level state is called the ground state energy level
  • the other energy level is called the excited state energy level
  • the lowest energy excited state is called the first excited state.
  • the atoms are in the ground state, and the extranuclear electrons move in the orbit with the lowest energy.
  • the atom will absorb the characteristic wavelength.
  • the outer electrons transition from the ground state to the corresponding excited state, forming an atomic absorption spectrum. After the electron transition to the higher energy level, it is in an excited state, but the excited state electron is unstable. After a short time, the excited state electron will return to the ground state or other lower energy level, and the energy absorbed by the electron transition will be The form of light is released, and this process forms an atomic emission spectrum. It can be seen that the atomic absorption spectroscopy process absorbs radiant energy, while the atomic emission spectroscopy process releases radiant energy.
  • the analysis principle of the X-ray fluorescence spectrometer is: the light source emits the original X-ray, the radiation illuminates the sample, the atom of the element to be tested absorbs the corresponding energy to form an excited state, and the outer electron transitions to the low-level electron layer. Secondary X-rays, ie, X-ray fluorescence, are emitted to release energy, and the intensity of the X-ray fluorescence is detected by a detector to determine the content of the element to be tested.
  • a ray fluorescence spectrometer places the sample into a vacuum chamber, then evacuates the vacuum chamber, and detects the components in the sample through X-rays and detectors.
  • a ray fluorescence spectrometer includes a sample chamber and an analysis chamber. When the sample is analyzed, the sample chamber and the vacuum chamber are both under vacuum. The method is suitable for the test of solid samples. If a liquid or powder sample is placed in a vacuum chamber, the liquid state is easily volatilized, and the powder state is liable to be in a suspended state, thus affecting the analysis result.
  • the question is how to perform a test analysis of the sample in the presence of a pressure differential.
  • the present invention provides an X-ray fluorescence spectrum analyzer.
  • an X-ray fluorescence spectrum analyzer comprising a box body, a vacuum chamber seat, a ray tube unit and a detector unit; the vacuum chamber seat is arranged in the box body, and the vacuum chamber body has a vacuum chamber
  • the ray tube unit is disposed on the vacuum chamber body; the detector unit is disposed on the vacuum chamber body; the vacuum chamber body is provided with a placement hole communicating with the vacuum chamber, and the placement hole is provided with a container device, and the container device has a sample chamber, the bottom of the container device has a through hole communicating with the sample cavity, and the container device is provided with a transparent film for closing the through hole, so that the sample cavity becomes a closed cavity, and a seal is provided between the container device and the vacuum cavity seat structure.
  • the analysis principle of the above structure spectrum analyzer is: firstly putting a liquid or powder sample into the sample cavity to make the sample cavity a sealed cavity isolated from the outside; then inserting one end of the container device with the transparent film into the placement hole Inside, the ray tube unit can be irradiated to the light transmissive film through the vacuum chamber; then the vacuum chamber is evacuated, and the sample is analyzed by the ray tube unit and the detector unit.
  • the light transmissive film since the light transmissive film is provided, the light energy of the ray tube unit can be irradiated onto the sample through the light transmissive film, and the sample can be analyzed by the detector unit; when the sample is analyzed, the sample is not It is in the vacuum chamber, which can prevent the liquid sample from being volatilized or the powder sample suspension, which improves the accuracy of the analysis.
  • the vacuum chamber has a negative pressure
  • the light-transmissive film is subjected to a certain negative pressure.
  • the container device containing the sample is a closed cavity, which is not affected by the external atmospheric pressure, the pressure difference between the two sides of the light-transmissive film is small, and the light-transmissive film is not easily broken, so that the analysis of the sample is more reliable.
  • the vacuum cavity seat comprises a seat body and an upper cover plate, wherein the vacuum cavity is disposed in the seat body; a first sealing groove is disposed on the upper surface of the seat body, and the cover plate is fixed on the seat body, A first sealing ring is disposed between the cover plate and the seat body and is disposed on the first sealing groove; the placing hole is disposed on the upper cover plate.
  • the structure is convenient for installing and disassembling the ray tube unit and the detector unit, and is convenient for processing the vacuum cavity seat.
  • the sealing performance between the upper cover and the seat body is good, so as to better ensure the vacuum cavity. Vacuum stability.
  • the container device comprises a cup body and a cup cover, wherein the cup body has the sample cavity, the bottom of the cup body is a through hole communicating with the sample cavity, and the light transmissive film is closed at the through hole at the bottom of the cup body,
  • the lid of the cup is placed on the cup body, and a second sealing ring is arranged between the cup lid and the cup body.
  • the structure facilitates placing the container device as a whole on the vacuum cavity seat and from the vacuum cavity seat; the container device is composed of a cup body and a cup cover for facilitating the preparation of the sample. Therefore, it brings convenience to the operation.
  • the second sealing ring the sealing performance between the cup body and the cup cover can be improved, and the influence of the external atmospheric pressure on the sample cavity can be reduced.
  • the light transmissive film is folded upward from the bottom of the cup body, and a cup sleeve is sleeved on the cup body, and the cup sleeve and the cup body hold the folded portion of the light transmissive film; the upper part of the cup body has an outwardly extending portion a flange, a third sealing ring is disposed between the first flange and the cup sleeve; the lid is movably connected to the cup sleeve.
  • the structure by providing the cup sleeve, can protect the cup body on the one hand, and can press the light-transmissive film on the other hand, so that the fixing of the light-transmissive film is more firm and reliable. Sealing performance can be improved by providing a second sealing ring.
  • the upper edge of the cup sleeve is provided with an outward second flange, and the second flange is provided with more than one through groove; the lid is provided with a clip, and the lower end of the clip has an inward card
  • the buckle and the snap card are placed on the second flange.
  • the structure is used to connect the lid to the cup sleeve. On the one hand, the cup lid and the cup sleeve are reliably connected, on the other hand, the lid can be quickly and conveniently covered and the lid can be removed; in addition, in the buckle and the second Under the action of the flange, the sealing of the first and second sealing rings can be made better.
  • a retaining ring is provided on the outer wall of the cup so as to limit the depth at which the container device is inserted into the placement hole.
  • the light transmissive film is folded upward from the bottom of the cup body, has a step at the lower end portion of the cup body, and a collar for holding the light transmissive film is sleeved on the step.
  • the structure not only can firmly and reliably fix the light-transmissive film, but also has a simple structure.
  • cup cover and the cup body are integrated.
  • the sealing structure is an oil seal disposed between the vacuum chamber seat and the container device to improve the sealing performance of the container device and the vacuum cavity seat, and improve the stability of the vacuum in the vacuum chamber.
  • a protection device is disposed under the transparent film in the vacuum cavity seat; the protection device includes a fixed block, a lower plate and a protective film, and the fixed block is fixed on the vacuum cavity seat, and the protective film is pressed Between the fixed block and the lower plate.
  • Figure 1 is a perspective view of an X-ray fluorescence spectrometer.
  • Fig. 2 is a view showing a state in which the cover of the X-ray fluorescence spectrometer is opened.
  • Fig. 3 is a schematic view of an X-ray fluorescence spectrometer after removing the case and the cover.
  • Figure 4 is a schematic view of another perspective of the X-ray fluorescence spectrometer after removing the case and the cover.
  • Fig. 5 is a schematic view showing another perspective of the X-ray fluorescence spectrometer after removing the case and the cover.
  • Figure 6 is an exploded view of the X-ray fluorescence spectrometer after removing the case and the cover.
  • the X-ray fluorescence spectrometer includes a case 100 and a cover 200.
  • the bottom surface of the case 100 has a recessed portion 101; the cover 200 is hinged on the case 100.
  • the cover 200 is located in the recess 101.
  • an analysis device is provided in the casing 100, and the analysis device includes a vacuum cavity seat 1, a ray tube unit 2, a detector unit 3, a container device 4, a sealing structure 5, and protection. Device 6.
  • the vacuum chamber block 1 includes a seat body 11 and an upper cover plate 12.
  • the seat body 11 includes a lower seat body 111 and a connecting flange 112 extending outward from an upper edge of the lower seat body 111.
  • the lower seat body 11 has a bottom plate, a front side plate, a rear side plate, a left side plate, and The right side panel is composed of which the right side panel is inclined from the bottom to the top.
  • the seat body 11 has a vacuum chamber 113 with an upper opening.
  • the upper surface of the flange 112 is provided with a first sealing groove 1121 for receiving the first sealing ring.
  • the upper cover 12 is fixed to the connecting flange 112 by screws, and the upper cover 12 is in contact with the first sealing ring. With the fastening of the screw to the upper cover 12, the first sealing ring is used.
  • the sealing performance between the upper cover 12 and the connecting flange 112 is better.
  • a placement hole 121 is formed in the upper cover 12 to communicate with the vacuum chamber.
  • a first insertion hole is formed at the bottom of the lower body 111, and a second insertion hole is provided on the right side plate.
  • the ray tube unit 2 includes an X-ray ray tube 21, a collimator 22, and a flange 23.
  • the flange 23 is fixed to the bottom of the lower base 111, the X-ray tube 21 is fixed on the flange 23, and the light generated by the X-ray tube is vertically emitted upward; the collimator 22 extends through the first insertion hole.
  • the collimator 22 extends through the first insertion hole.
  • the detector unit 3 includes a detector 31, a detector fixing plate 32, a detector fixing plate supporting seat 33, a detector sealing ring pressing plate 34, a detector sealing ring and a detector shielding. Cover 35.
  • the probe head of the detector 31 extends into the vacuum chamber 113 through the second projecting hole. Since the right side plate is inclined, it is convenient to tilt the probe 31 to the lower seat.
  • the detector fixing plate 32 is fixed to the detector 31, and the detector fixing plate supporting seat 33 is fixed to the detector fixing plate 32 to fix the detector 31 to the casing 100.
  • the detector sealing ring pressure plate 34 is fixed on the right side plate, and the detector sealing ring is disposed between the right side plate and the detector sealing ring pressing plate 34 to improve the sealing performance.
  • the detector shield 35 is disposed outside the detector 31 to prevent the detector from radiating outward during operation to protect the detector.
  • the container device includes a cup body 41, a cup cover 42, a cup cover 43, and a light transmissive film.
  • the cup body 41 has a sample chamber 411 having a bottom portion having a through hole communicating with the sample chamber 411.
  • the upper portion of the cup body 41 has an outwardly extending first flange 412, and is provided on the upper surface of the first flange 412.
  • the cover 42 includes a cover 421 and a clip 422.
  • the cover 42 is provided with a slot 4211 on the circumference thereof.
  • the upper end of the clip 422 is disposed in the slot 4211 and fixed by screws; the lower end of the clip 422
  • the part has a buckle 4221.
  • the upper edge of the cup sleeve 43 is provided with an outwardly extending second flange 431, and the second flange 431 is provided with a through groove 4311 corresponding to the number of clips; and a limiting ring is arranged on the outer wall of the cup sleeve 43. 432.
  • a third seal groove 433 is provided on the upper surface of the second flange 431.
  • a second sealing ring 44 is inserted between the cover 421 and the first flange 412 and inserted into the second sealing groove 413; between the first flange 412 and the second flange 431
  • a third sealing ring 45 is provided to the third sealing groove 433 to improve sealing performance.
  • the light transmissive film is disposed at the bottom of the cup body and is folded upward, and is clamped by the cup sleeve 43 to prevent the light transmissive film from being detached from the cup body 41.
  • the light transmissive film is first placed on the bottom of the cup body 41, and then the third sealing ring 45 is placed on the cup body 41, and then the cup sleeve 43 is placed on the cup body 41, and the cup sleeve 43 is used.
  • the second flange 431 pushes the third sealing ring 45 so that the third sealing ring 45 is located between the first flange 412 and the second flange 431; then, the liquid or powder sample is loaded into the cup 41, and finally Covering the lid of the lid 42, the process is: pressing the clip 422 against the through groove 4311, pressing the lid 42 downward until the buckle 4221 passes through the through groove 4311, and then rotating the lid 42, at the buckle 4221 and
  • the second flange 431 locks the lid on the cup sleeve, and the disassembly process is reversed.
  • the lid lid 42 not only the lid lid 42 but also the cup lid 42 is conveniently removed, and the cup is removed by the second sealing ring.
  • the sealing performance of the lid 42 and the cup 41 is good to isolate the sample chamber from the outside. Of course, the lid and the cup can also be threaded.
  • the container device may also be of the following structure, including a cup body and a lid, the lid of the cup is placed on the cup body, and a step is provided at a lower end portion of the cup body, and the light transmissive film is folded upward from the bottom of the cup body on the step.
  • the sleeve has a collar that holds the light-transmissive film.
  • Another structure of the container device comprises a cup body, a cup cover and a light transmissive film, and the light transmissive film is arranged at the bottom of the cup body, and the cup cover and the cup body are integrated.
  • the lower end of the container device 4 is inserted into the placement hole 121.
  • the sealing between the container device and the upper cover 12 is performed by a sealing structure, and the sealing structure 5 is an oil seal, so that the stability of the vacuum degree of the vacuum chamber can be ensured.
  • the protection device 6 includes a fixing block 61, a lower plate 62 and a protective film.
  • the fixing block 61 has a first through hole.
  • the fixing block has a first step 611 extending outward from the first through hole.
  • the lower plate 62 has a second through hole.
  • the upper surface of the lower plate is provided with a slot 621.
  • the lower plate 62 is provided.
  • the protective film is disposed at the corresponding first through hole of the fixing block 61, and is fixed by the lower plate.
  • the fixing block 61 is provided with a screw for locking the lower plate 62.
  • the fixing block 61 is fixed to the lower surface of the upper cover 12, and the first through hole and the second through hole correspond to the placement hole 121.
  • the analysis principle of the above-mentioned structure spectrum analyzer is: placing the assembled container device into the placement hole 121, at this time, the sample chamber 411 is a closed space; the collimator 22 can be irradiated to the transparent film through the vacuum chamber 113; The vacuum chamber 113 is then evacuated to a vacuum, using a ray tube Element 2 and detector unit 3 analyze the sample.
  • the light transmissive film since the light transmissive film is provided, the light energy of the ray tube unit 2 can be irradiated onto the sample through the light transmissive film, and the sample can be analyzed by the detector unit 3; when analyzing the sample, The sample is not in the vacuum chamber, so that the liquid sample is volatilized or the powder sample is suspended, and the accuracy of the analysis is improved.
  • the vacuum chamber 113 has a negative pressure
  • the light-transmissive film is subjected to a certain degree. The negative pressure, but because the container device containing the sample is a closed cavity, which is not affected by the external atmospheric pressure, the pressure difference between the two sides of the transparent film is small, and the transparent film is not easily broken, so that the analysis of the sample is more reliable.
  • the present invention since the collimator 22 is positioned below the light transmissive film, in order to prevent the collimator 22 from piercing the light transmissive film and preventing the liquid or powder sample from entering the vacuum chamber, the present invention provides a protective device.

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Abstract

An X-ray fluorescence spectrum analyzer, comprising a box body (100), a vacuum chamber seat (1), a ray tube unit (2) and a detector unit (3); the vacuum chamber seat (1)is disposed inside the box body(100) and is provided with a vacuum chamber (113); the ray tube unit (2) is disposed on the vacuum chamber seat (1); the detector unit (3) is disposed on the vacuum chamber seat (1); the vacuum chamber seat (1) is provided with a placing hole (121) in communication with the vacuum chamber (113), and a vessel device (4)is placed in the placing hole (121), and a sample chamber (411) is internally disposed in the vessel device (4), and the bottom of the vessel device (4) is provided with a through hole in communication with the sample chamber (411), and a light transmitting film sealing the through hole is provided on the vessel device (4), so as to make the sample chamber (411) to become a closed chamber, and a seal structure (5) is disposed between the vessel device (4) and the vacuum chamber seat (1). The analyzer solves the technical problem of the sample is difficult to be analyzed accurately caused by the sample cannot be placed inside the vacuum chamber (113).

Description

X-射线荧光光谱分析仪X-ray fluorescence spectrometer 技术领域Technical field
本发明涉及X-射线荧光光谱分析仪，尤其是涉及对液态或粉末态样品进行分析的X-射线荧光光谱分析仪。The present invention relates to an X-ray fluorescence spectrometer, and more particularly to an X-ray fluorescence spectrometer for analyzing liquid or powder samples.
背景技术Background technique
任何元素的原子都是由原子核和绕核运动的电子组成，原子核外电子按其能量的高低分层分布而形成不同的能级，因此，一个原子核可以具有多种能级状态。能量最低的能级状态称为基态能级，其余能级称为激发态能级，能量最低的激发态则称为第一激发态。正常情况下，原子处于基态，核外电子在各自能量最低的轨道上运动。如果将一定外界能量如光能提供给该基态原子，当外界光能量E恰好等于该基态原子中基态和某一较高能级之间的能级差△E时，该原子将吸收这一特征波长的光，外层电子由基态跃迁到相应的激发态，形成原子吸收光谱。电子跃迁到较高能级以后处于激发态，但激发态电子是不稳定的，经过一较短时间后，激发态电子将返回基态或其它较低能级，并将电子跃迁时所吸收的能量以光的形式释放出去，这个过程形成原子发射光谱。可见原子吸收光谱过程吸收辐射能量，而原子发射光谱过程则释放辐射能量。The atoms of any element are composed of nuclei and electrons moving around the nucleus. The electrons outside the nucleus are layered according to the level of their energy to form different energy levels. Therefore, a nucleus can have multiple energy levels. The lowest energy level state is called the ground state energy level, the other energy level is called the excited state energy level, and the lowest energy excited state is called the first excited state. Under normal conditions, the atoms are in the ground state, and the extranuclear electrons move in the orbit with the lowest energy. If a certain external energy, such as light energy, is supplied to the ground state atom, when the external light energy E is exactly equal to the energy level difference ΔE between the ground state and a higher energy level in the ground state atom, the atom will absorb the characteristic wavelength. Light, the outer electrons transition from the ground state to the corresponding excited state, forming an atomic absorption spectrum. After the electron transition to the higher energy level, it is in an excited state, but the excited state electron is unstable. After a short time, the excited state electron will return to the ground state or other lower energy level, and the energy absorbed by the electron transition will be The form of light is released, and this process forms an atomic emission spectrum. It can be seen that the atomic absorption spectroscopy process absorbs radiant energy, while the atomic emission spectroscopy process releases radiant energy.
X-射线荧光光谱分析仪的分析原理是：光源发射出原级X-射线，该射线照射样品，待测元素的原子吸收相应的能量形成激发态，外层电子向低能级电子层跃迁，同时发射出次级X-射线，即X-射线荧光，以释放能量，通过探测器检测X-射线荧光的强度，进而求得待测元素的含量。The analysis principle of the X-ray fluorescence spectrometer is: the light source emits the original X-ray, the radiation illuminates the sample, the atom of the element to be tested absorbs the corresponding energy to form an excited state, and the outer electron transitions to the low-level electron layer. Secondary X-rays, ie, X-ray fluorescence, are emitted to release energy, and the intensity of the X-ray fluorescence is detected by a detector to determine the content of the element to be tested.
现有的X-射线荧光光谱分析仪是将样品放置到真空腔内，然后将真空腔抽成真空，通过X-射线和探测器检测样品中的成分。如在申请号为201320411650.X的专利文献中公开了一种射线荧光光谱仪，其包括样品腔和分析腔，在分析样品时，样品腔和真空腔均处在真空状态下，这种 方式适合于固态样品的测试，如果将液态或粉末态的样品放置到真空腔内，则液态很容易挥发，粉末态容易出现悬浮态，因此，会影响分析的结果。如果将真空腔与放置样品的容器分开，由于真空腔内为负压，同时光线又需要通过真空腔照射到样品上来分析样品，因此，如果不将样品放置到真空腔内，则需要解决一重要问题是，在存在压差的情况下如何实现对样品的检测分析。The existing X-ray fluorescence spectrometer places the sample into a vacuum chamber, then evacuates the vacuum chamber, and detects the components in the sample through X-rays and detectors. As disclosed in the patent document No. 201320411650.X, a ray fluorescence spectrometer includes a sample chamber and an analysis chamber. When the sample is analyzed, the sample chamber and the vacuum chamber are both under vacuum. The method is suitable for the test of solid samples. If a liquid or powder sample is placed in a vacuum chamber, the liquid state is easily volatilized, and the powder state is liable to be in a suspended state, thus affecting the analysis result. If the vacuum chamber is separated from the container in which the sample is placed, since the vacuum chamber is under negative pressure and the light needs to be irradiated onto the sample through the vacuum chamber to analyze the sample, it is important to solve the problem if the sample is not placed in the vacuum chamber. The question is how to perform a test analysis of the sample in the presence of a pressure differential.
发明内容Summary of the invention
为了解决上述技术问题，本发明提供了一种X-射线荧光光谱分析仪。In order to solve the above technical problems, the present invention provides an X-ray fluorescence spectrum analyzer.
解决上述技术问题的技术方案是：X-射线荧光光谱分析仪，包括箱体、真空腔体座、射线管单元及探测器单元；真空腔体座设在箱体内，真空腔体座具有真空腔；射线管单元设在真空腔体座上；探测器单元设在真空腔体座上；在真空腔体座上设有与真空腔相通的放置孔，放置孔放置有容器装置，容器装置内具有样品腔，容器装置的底部具有与样品腔相通的通孔，在容器装置上设有封闭通孔的透光膜，使样品腔成为密闭腔，在容器装置与真空腔体座之间设有密封结构。The technical solution for solving the above technical problem is: an X-ray fluorescence spectrum analyzer comprising a box body, a vacuum chamber seat, a ray tube unit and a detector unit; the vacuum chamber seat is arranged in the box body, and the vacuum chamber body has a vacuum chamber The ray tube unit is disposed on the vacuum chamber body; the detector unit is disposed on the vacuum chamber body; the vacuum chamber body is provided with a placement hole communicating with the vacuum chamber, and the placement hole is provided with a container device, and the container device has a sample chamber, the bottom of the container device has a through hole communicating with the sample cavity, and the container device is provided with a transparent film for closing the through hole, so that the sample cavity becomes a closed cavity, and a seal is provided between the container device and the vacuum cavity seat structure.
上述结构光谱分析仪的分析原理是：先将液态或粉末态的样品放入到样品腔内，使样品腔成为与外界隔离的密闭腔；然后将具有透光膜的容器装置一端***到放置孔内，让射线管单元能够通过真空腔照射到透光膜；然后将真空腔抽成真空，利用射线管单元和探测器单元分析样品。在本发明中，由于设置了透光膜，因此，射线管单元的光能透过透光膜能照射到样品上，通过探测器单元能对样品进行分析；在对样品进行分析时，样品未处在真空腔内，这样就可以防止液态样品挥发或粉末态样品悬浮，提高了分析的精确度；另外，在本发明中，虽然真空腔具有负压，使得透光膜承受着一定的负压力，但由于盛装样品的容器装置为密闭腔，其不受外界大气压的影响，因此，透光膜两侧的压力差小，透光膜不容易破裂，使得对样品的分析更加可靠。The analysis principle of the above structure spectrum analyzer is: firstly putting a liquid or powder sample into the sample cavity to make the sample cavity a sealed cavity isolated from the outside; then inserting one end of the container device with the transparent film into the placement hole Inside, the ray tube unit can be irradiated to the light transmissive film through the vacuum chamber; then the vacuum chamber is evacuated, and the sample is analyzed by the ray tube unit and the detector unit. In the present invention, since the light transmissive film is provided, the light energy of the ray tube unit can be irradiated onto the sample through the light transmissive film, and the sample can be analyzed by the detector unit; when the sample is analyzed, the sample is not It is in the vacuum chamber, which can prevent the liquid sample from being volatilized or the powder sample suspension, which improves the accuracy of the analysis. In addition, in the present invention, although the vacuum chamber has a negative pressure, the light-transmissive film is subjected to a certain negative pressure. However, since the container device containing the sample is a closed cavity, which is not affected by the external atmospheric pressure, the pressure difference between the two sides of the light-transmissive film is small, and the light-transmissive film is not easily broken, so that the analysis of the sample is more reliable.
进一步的，所述的真空腔体座包括座体及上盖板，所述的真空腔设置在座体内；在座体的上表面设有第一密封槽，盖板固定在座体上，在 盖板与座体之间设有卡置到第一密封槽的第一密封圈；所述的放置孔设置在上盖板上。该结构，一方面便于安装拆卸射线管单元和探测器单元，便于加工真空腔体座，另一方面，可让上盖板与座体之间的密封性能好，以更好的保证真空腔内真空度稳定性。Further, the vacuum cavity seat comprises a seat body and an upper cover plate, wherein the vacuum cavity is disposed in the seat body; a first sealing groove is disposed on the upper surface of the seat body, and the cover plate is fixed on the seat body, A first sealing ring is disposed between the cover plate and the seat body and is disposed on the first sealing groove; the placing hole is disposed on the upper cover plate. The structure is convenient for installing and disassembling the ray tube unit and the detector unit, and is convenient for processing the vacuum cavity seat. On the other hand, the sealing performance between the upper cover and the seat body is good, so as to better ensure the vacuum cavity. Vacuum stability.
进一步的，所述的容器装置包括杯体及杯盖，杯体内具有所述的样品腔，杯体的底部为与样品腔相通的通孔，透光膜封闭在杯体底部的通孔处，杯盖盖在杯体上，在杯盖与杯体之间设有第二密封圈。该结构便于将容器装置整体安放到真空腔体座上和从真空腔体座上取出；所述的容器装置由杯体和杯盖组成，便于盛装样品。因此，给操作带来了方便。另外，通过设置第二密封圈可提高杯体与杯盖之间的密封性能，减小外界大气压对样品腔的影响。Further, the container device comprises a cup body and a cup cover, wherein the cup body has the sample cavity, the bottom of the cup body is a through hole communicating with the sample cavity, and the light transmissive film is closed at the through hole at the bottom of the cup body, The lid of the cup is placed on the cup body, and a second sealing ring is arranged between the cup lid and the cup body. The structure facilitates placing the container device as a whole on the vacuum cavity seat and from the vacuum cavity seat; the container device is composed of a cup body and a cup cover for facilitating the preparation of the sample. Therefore, it brings convenience to the operation. In addition, by providing the second sealing ring, the sealing performance between the cup body and the cup cover can be improved, and the influence of the external atmospheric pressure on the sample cavity can be reduced.
进一步的，透光膜自杯体的底部向上翻折，在杯体上套有杯套，杯套与杯体夹持住透光膜的翻折部分；杯体的上部具有向外延伸的第一凸缘，第一凸缘与杯套之间设有第三密封圈；杯盖活动的连接在杯套上。该结构，通过设置杯套，一方面能起到保护杯体的作用，另一方面能压紧透光膜，使透光膜的固定更加的牢固、可靠。通过设置第二密封圈，可提高密封性能。Further, the light transmissive film is folded upward from the bottom of the cup body, and a cup sleeve is sleeved on the cup body, and the cup sleeve and the cup body hold the folded portion of the light transmissive film; the upper part of the cup body has an outwardly extending portion a flange, a third sealing ring is disposed between the first flange and the cup sleeve; the lid is movably connected to the cup sleeve. The structure, by providing the cup sleeve, can protect the cup body on the one hand, and can press the light-transmissive film on the other hand, so that the fixing of the light-transmissive film is more firm and reliable. Sealing performance can be improved by providing a second sealing ring.
进一步的，杯套的上部边缘设有向外的第二凸缘，在第二凸缘上设有一个以上的通槽；在杯盖上设有夹扣，夹扣的下端具有向内的卡扣，卡扣卡置在第二凸缘上。利用该结构将杯盖与杯套活动连接起来，一方面杯盖与杯套的连接可靠，另一方面可快速、方便的盖上杯盖和取下杯盖；另外，在卡扣与第二凸缘的作用下，能让第一、第二密封圈的密封更加的好。Further, the upper edge of the cup sleeve is provided with an outward second flange, and the second flange is provided with more than one through groove; the lid is provided with a clip, and the lower end of the clip has an inward card The buckle and the snap card are placed on the second flange. The structure is used to connect the lid to the cup sleeve. On the one hand, the cup lid and the cup sleeve are reliably connected, on the other hand, the lid can be quickly and conveniently covered and the lid can be removed; in addition, in the buckle and the second Under the action of the flange, the sealing of the first and second sealing rings can be made better.
进一步的，在杯套的外壁上设有限位环，这样，能限制容器装置***到放置孔的深度。Further, a retaining ring is provided on the outer wall of the cup so as to limit the depth at which the container device is inserted into the placement hole.
进一步的，透光膜自杯体的底部向上翻折，在杯体的下端部具有台阶，在台阶上套有夹持透光膜的套环。该结构，不仅能牢固、可靠的固定透光膜，且结构简单。Further, the light transmissive film is folded upward from the bottom of the cup body, has a step at the lower end portion of the cup body, and a collar for holding the light transmissive film is sleeved on the step. The structure not only can firmly and reliably fix the light-transmissive film, but also has a simple structure.
进一步的，杯盖与杯体为一体结构。 Further, the cup cover and the cup body are integrated.
进一步的，所述的密封结构为设在真空腔体座与容器装置之间的油封，以提高容器装置与真空腔体座的密封性能，提高真空腔内真空度的稳定性。Further, the sealing structure is an oil seal disposed between the vacuum chamber seat and the container device to improve the sealing performance of the container device and the vacuum cavity seat, and improve the stability of the vacuum in the vacuum chamber.
进一步的，在真空腔体座内位于透光膜的下方设有保护装置；所述的保护装置包括固定块、下板及保护膜，固定块固定在真空腔体座上，保护膜压合在固定块与下板之间。通过设置保护膜，能防止射线管单元以及探测器单元刺破透光膜，可有效的防止样品腔的样品进入到真空腔内而影响分析仪的使用寿命和分析精度。Further, a protection device is disposed under the transparent film in the vacuum cavity seat; the protection device includes a fixed block, a lower plate and a protective film, and the fixed block is fixed on the vacuum cavity seat, and the protective film is pressed Between the fixed block and the lower plate. By providing a protective film, the ray tube unit and the detector unit can be prevented from puncturing the transparent film, which can effectively prevent the sample cavity sample from entering the vacuum chamber and affecting the life and analysis accuracy of the analyzer.
附图说明DRAWINGS
图1为X-射线荧光光谱分析仪的立体图。Figure 1 is a perspective view of an X-ray fluorescence spectrometer.
图2为X-射线荧光光谱分析仪箱盖打开时的状态图。Fig. 2 is a view showing a state in which the cover of the X-ray fluorescence spectrometer is opened.
图3为去掉箱体和箱盖后X-射线荧光光谱分析仪的示意图。Fig. 3 is a schematic view of an X-ray fluorescence spectrometer after removing the case and the cover.
图4为去掉箱体和箱盖后X-射线荧光光谱分析仪另一视角示意图。Figure 4 is a schematic view of another perspective of the X-ray fluorescence spectrometer after removing the case and the cover.
图5为去掉箱体和箱盖后X-射线荧光光谱分析仪另一视角示意图。Fig. 5 is a schematic view showing another perspective of the X-ray fluorescence spectrometer after removing the case and the cover.
图6为去掉箱体和箱盖后X-射线荧光光谱分析仪的分解图。Figure 6 is an exploded view of the X-ray fluorescence spectrometer after removing the case and the cover.
具体实施方式detailed description
下面结合附图和具体实施方式对本发明进行进一步详细说明。The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
如图1和图2所示，X-射线荧光光谱分析仪包括箱体100及箱盖200。箱体100的底面具有凹陷部101；所述的箱盖200铰接在箱体100上，当箱盖200盖合在箱体100上时，箱盖200位于凹陷部101内。As shown in FIGS. 1 and 2, the X-ray fluorescence spectrometer includes a case 100 and a cover 200. The bottom surface of the case 100 has a recessed portion 101; the cover 200 is hinged on the case 100. When the cover 200 is attached to the case 100, the cover 200 is located in the recess 101.
如图3至图6所示，在箱体100内设有分析装置，所述的分析装置包括真空腔体座1、射线管单元2、探测器单元3、容器装置4、密封结构5及保护装置6。As shown in FIG. 3 to FIG. 6, an analysis device is provided in the casing 100, and the analysis device includes a vacuum cavity seat 1, a ray tube unit 2, a detector unit 3, a container device 4, a sealing structure 5, and protection. Device 6.
如图6所示，真空腔体座1包括座体11和上盖板12。所述的座体11包括下座体111和自下座体111上边缘向外延伸的连接凸缘112，所述的下座体11有底板、前侧板、后侧板、左侧板和右侧板组成，其中右侧板自下向上向外倾斜。所述的座体11具有上部开口的真空腔113。在连 接凸缘112的上表面设有第一密封槽1121，第一密封槽1121用于容置第一密封圈。所述的上盖板12通过螺钉固定在连接凸缘112上，上盖板12与第一密封圈相接触，随着螺钉对上盖板12的紧固，在第一密封圈的作用下使上盖板12与连接凸缘112之间的密封性能更好。在上盖板12上设有与真空腔相通的放置孔121。As shown in FIG. 6, the vacuum chamber block 1 includes a seat body 11 and an upper cover plate 12. The seat body 11 includes a lower seat body 111 and a connecting flange 112 extending outward from an upper edge of the lower seat body 111. The lower seat body 11 has a bottom plate, a front side plate, a rear side plate, a left side plate, and The right side panel is composed of which the right side panel is inclined from the bottom to the top. The seat body 11 has a vacuum chamber 113 with an upper opening. In the company The upper surface of the flange 112 is provided with a first sealing groove 1121 for receiving the first sealing ring. The upper cover 12 is fixed to the connecting flange 112 by screws, and the upper cover 12 is in contact with the first sealing ring. With the fastening of the screw to the upper cover 12, the first sealing ring is used. The sealing performance between the upper cover 12 and the connecting flange 112 is better. A placement hole 121 is formed in the upper cover 12 to communicate with the vacuum chamber.
在下座体111的底部设有第一伸入孔，在右侧板上设有第二伸入孔。A first insertion hole is formed at the bottom of the lower body 111, and a second insertion hole is provided on the right side plate.
如图3至图6所示，所述的射线管单元2包括X-RAY射线管21、准直器22和法兰23。法兰23固定在下座体111的底部，X-RAY射线管21固定在法兰23上，X-RAY射线管发生的光线垂直向上射出；准直器22穿过第一伸入孔伸入到真空腔内。As shown in FIGS. 3 to 6, the ray tube unit 2 includes an X-ray ray tube 21, a collimator 22, and a flange 23. The flange 23 is fixed to the bottom of the lower base 111, the X-ray tube 21 is fixed on the flange 23, and the light generated by the X-ray tube is vertically emitted upward; the collimator 22 extends through the first insertion hole. Inside the vacuum chamber.
如图3至图6所示，所述的探测器单元3包括探测器31、探测器固定板32、探测器固定板支撑座33、探测器密封圈压板34、探测器密封圈及探测器屏蔽罩35。探测器31的探测头穿过第二伸入孔伸入到真空腔113内，由于右侧板倾斜设置，这样，便于将探测器31倾斜固定到下座体上。探测器固定板32固定在探测器31上，探测器固定板支撑座33固定在探测器固定板32上，以便于将探测器31固定到箱体100上。探测器密封圈压板34固定在右侧板上，探测器密封圈设在右侧板与探测器密封圈压板34之间，以提高密封性能。探测器屏蔽罩35设在探测器31外，防止探测器工作时向外辐射，起到保护的作用。As shown in FIG. 3 to FIG. 6, the detector unit 3 includes a detector 31, a detector fixing plate 32, a detector fixing plate supporting seat 33, a detector sealing ring pressing plate 34, a detector sealing ring and a detector shielding. Cover 35. The probe head of the detector 31 extends into the vacuum chamber 113 through the second projecting hole. Since the right side plate is inclined, it is convenient to tilt the probe 31 to the lower seat. The detector fixing plate 32 is fixed to the detector 31, and the detector fixing plate supporting seat 33 is fixed to the detector fixing plate 32 to fix the detector 31 to the casing 100. The detector sealing ring pressure plate 34 is fixed on the right side plate, and the detector sealing ring is disposed between the right side plate and the detector sealing ring pressing plate 34 to improve the sealing performance. The detector shield 35 is disposed outside the detector 31 to prevent the detector from radiating outward during operation to protect the detector.
如图3至图6所示，容器装置包括杯体41、杯盖42、杯套43及透光膜。杯体41具有样品腔411，杯体41的底部具有与样品腔411相通的通孔；杯体41的上部具有向外延伸的第一凸缘412，在第一凸缘412的上表面设有第二密封槽413。所述的杯盖42包括盖体421及夹扣422；盖体42的圆周上设有卡槽4211；夹扣422的上端部设在卡槽4211内，并通过螺钉固定；夹扣422的下端部具有卡扣4221。所述的杯套43的上部边缘设有向外的第二凸缘431，在第二凸缘431上设有与夹扣数量一致的通槽4311；在杯套43的外壁上设有限位环432。在第二凸缘431的上表面设有第三密封槽433。在盖体421与第一凸缘412之间设有卡置到第二密封槽413内的第二密封圈44；在第一凸缘412与第二凸缘431之间 设有卡置到第三密封槽433的第三密封圈45，以提高密封性能。所述的透光膜设在杯体的底部并向上翻折，通过杯套43夹持住，防止透光膜脱离杯体41。在使用该容器装置时，先将透光膜套在杯体41的底部，然后将第三密封圈45套在杯体41上，接着将杯套43套在杯体41上，利用杯套43的第二凸缘431推动第三密封圈45，让第三密封圈45位于第一凸缘412与第二凸缘431之间；然后，将液态或粉末样品装入到杯体41内，最后盖上杯盖42盖上，其过程是：将夹扣422对着通槽4311，将杯盖42向下压直到卡扣4221穿过通槽4311，然后旋转杯盖42，在卡扣4221和第二凸缘431的作用下将杯盖锁扣在杯套上，拆卸的过程相反，这样，不仅方便盖杯盖42，而且方便拆卸杯盖42，同时在第二密封圈的作用下，杯盖42与杯体41的密封性能好，让样品腔与外界隔离。当然，杯盖与杯套也可以通过螺纹连接。As shown in FIGS. 3 to 6, the container device includes a cup body 41, a cup cover 42, a cup cover 43, and a light transmissive film. The cup body 41 has a sample chamber 411 having a bottom portion having a through hole communicating with the sample chamber 411. The upper portion of the cup body 41 has an outwardly extending first flange 412, and is provided on the upper surface of the first flange 412. The second sealing groove 413. The cover 42 includes a cover 421 and a clip 422. The cover 42 is provided with a slot 4211 on the circumference thereof. The upper end of the clip 422 is disposed in the slot 4211 and fixed by screws; the lower end of the clip 422 The part has a buckle 4221. The upper edge of the cup sleeve 43 is provided with an outwardly extending second flange 431, and the second flange 431 is provided with a through groove 4311 corresponding to the number of clips; and a limiting ring is arranged on the outer wall of the cup sleeve 43. 432. A third seal groove 433 is provided on the upper surface of the second flange 431. A second sealing ring 44 is inserted between the cover 421 and the first flange 412 and inserted into the second sealing groove 413; between the first flange 412 and the second flange 431 A third sealing ring 45 is provided to the third sealing groove 433 to improve sealing performance. The light transmissive film is disposed at the bottom of the cup body and is folded upward, and is clamped by the cup sleeve 43 to prevent the light transmissive film from being detached from the cup body 41. When the container device is used, the light transmissive film is first placed on the bottom of the cup body 41, and then the third sealing ring 45 is placed on the cup body 41, and then the cup sleeve 43 is placed on the cup body 41, and the cup sleeve 43 is used. The second flange 431 pushes the third sealing ring 45 so that the third sealing ring 45 is located between the first flange 412 and the second flange 431; then, the liquid or powder sample is loaded into the cup 41, and finally Covering the lid of the lid 42, the process is: pressing the clip 422 against the through groove 4311, pressing the lid 42 downward until the buckle 4221 passes through the through groove 4311, and then rotating the lid 42, at the buckle 4221 and The second flange 431 locks the lid on the cup sleeve, and the disassembly process is reversed. Thus, not only the lid lid 42 but also the cup lid 42 is conveniently removed, and the cup is removed by the second sealing ring. The sealing performance of the lid 42 and the cup 41 is good to isolate the sample chamber from the outside. Of course, the lid and the cup can also be threaded.
当然，容器装置还可以为如下结构，包括杯体及杯盖，杯盖盖在杯体上，在杯体的下端部设有台阶，透光膜自杯体的底部向上翻折，在台阶上套有夹持透光膜的套环。Of course, the container device may also be of the following structure, including a cup body and a lid, the lid of the cup is placed on the cup body, and a step is provided at a lower end portion of the cup body, and the light transmissive film is folded upward from the bottom of the cup body on the step. The sleeve has a collar that holds the light-transmissive film.
容器装置的另一种结构，包括杯体、杯盖和透光膜，透光膜设在杯体的底部，杯盖与杯体为一体结构。Another structure of the container device comprises a cup body, a cup cover and a light transmissive film, and the light transmissive film is arranged at the bottom of the cup body, and the cup cover and the cup body are integrated.
当完成了容器装置的组装后，将容器装置4的下端***到放置孔121。通过密封结构对容器装置与上盖板12之间进行密封，所述的密封结构5为油封，这样，可保证真空腔的真空度的稳定性。When the assembly of the container device is completed, the lower end of the container device 4 is inserted into the placement hole 121. The sealing between the container device and the upper cover 12 is performed by a sealing structure, and the sealing structure 5 is an oil seal, so that the stability of the vacuum degree of the vacuum chamber can be ensured.
所述的保护装置6包括固定块61、下板62及保护膜。固定块61具有第一通孔，固定块上自第一通孔向外延伸形成有第一台阶611；下板62具有第二通孔，下板的上表面设有槽621；下板62设在第一台阶611内，保护膜设在固定块61对应的第一通孔处，并利用下板夹持固定，在固定块61上设有螺钉，用于锁紧下板62。固定块61固定在上盖板12的下表面，所述的第一通孔和第二通孔与放置孔121对应。The protection device 6 includes a fixing block 61, a lower plate 62 and a protective film. The fixing block 61 has a first through hole. The fixing block has a first step 611 extending outward from the first through hole. The lower plate 62 has a second through hole. The upper surface of the lower plate is provided with a slot 621. The lower plate 62 is provided. In the first step 611, the protective film is disposed at the corresponding first through hole of the fixing block 61, and is fixed by the lower plate. The fixing block 61 is provided with a screw for locking the lower plate 62. The fixing block 61 is fixed to the lower surface of the upper cover 12, and the first through hole and the second through hole correspond to the placement hole 121.
上述结构光谱分析仪的分析原理是：将上述组装好的容器装置放置到放置孔121内，此时，样品腔411为密闭空间；让准直器22能够通过真空腔113照射到透光膜；然后将真空腔113抽成真空，利用射线管单 元2和探测器单元3分析样品。在本发明中，由于设置了透光膜，因此，射线管单元2的光能透过透光膜能照射到样品上，通过探测器单元3能对样品进行分析；在对样品进行分析时，样品未处在真空腔内，这样就可以防止液态样品挥发或粉末态样品悬浮，提高了分析的精确度；另外，在本发明中，虽然真空腔113具有负压，使得透光膜承受着一定的负压力，但由于盛装样品的容器装置为密闭腔，其不受外界大气压的影响，因此，透光膜两侧的压力差小，透光膜不容易破裂，使得对样品的分析更加可靠。The analysis principle of the above-mentioned structure spectrum analyzer is: placing the assembled container device into the placement hole 121, at this time, the sample chamber 411 is a closed space; the collimator 22 can be irradiated to the transparent film through the vacuum chamber 113; The vacuum chamber 113 is then evacuated to a vacuum, using a ray tube Element 2 and detector unit 3 analyze the sample. In the present invention, since the light transmissive film is provided, the light energy of the ray tube unit 2 can be irradiated onto the sample through the light transmissive film, and the sample can be analyzed by the detector unit 3; when analyzing the sample, The sample is not in the vacuum chamber, so that the liquid sample is volatilized or the powder sample is suspended, and the accuracy of the analysis is improved. In addition, in the present invention, although the vacuum chamber 113 has a negative pressure, the light-transmissive film is subjected to a certain degree. The negative pressure, but because the container device containing the sample is a closed cavity, which is not affected by the external atmospheric pressure, the pressure difference between the two sides of the transparent film is small, and the transparent film is not easily broken, so that the analysis of the sample is more reliable.
在本发明中，由于准直器22位于透光膜的下方，为了防止准直器22刺破透光膜，避免液态或粉末样品进入到真空腔内，本发明设置了保护装置。 In the present invention, since the collimator 22 is positioned below the light transmissive film, in order to prevent the collimator 22 from piercing the light transmissive film and preventing the liquid or powder sample from entering the vacuum chamber, the present invention provides a protective device.

Claims (10)

  1. X-射线荧光光谱分析仪，包括箱体、真空腔体座、射线管单元及探测器单元；真空腔体座设在箱体内，真空腔体座具有真空腔；射线管单元设在真空腔体座上；探测器单元设在真空腔体座上；其特征在于：在真空腔体座上设有与真空腔相通的放置孔，放置孔放置有容器装置，容器装置内具有样品腔，容器装置的底部具有与样品腔相通的通孔，在容器装置上设有封闭通孔的透光膜，使样品腔成为密闭腔，在容器装置与真空腔体座之间设有密封结构。The X-ray fluorescence spectrum analyzer comprises a box body, a vacuum cavity seat, a ray tube unit and a detector unit; the vacuum chamber body is arranged in the box body, the vacuum chamber body has a vacuum chamber; the ray tube unit is arranged in the vacuum chamber body The detector unit is disposed on the vacuum chamber body; and is characterized in that: a vacuum hole is provided with a placement hole communicating with the vacuum chamber, the placement hole is provided with a container device, the container device has a sample cavity, and the container device is The bottom portion has a through hole communicating with the sample cavity, and the container device is provided with a light-transmissive film for closing the through hole, so that the sample cavity becomes a closed cavity, and a sealing structure is arranged between the container device and the vacuum cavity seat.
  2. 根据权利要求1所述的X-射线荧光光谱分析仪，其特征在于：所述的真空腔体座包括座体及上盖板，所述的真空腔设置在座体内；在座体的上表面设有第一密封槽，盖板固定在座体上，在盖板与座体之间设有卡置到第一密封槽的第一密封圈；所述的放置孔设置在上盖板上。The X-ray fluorescence spectrum analyzer according to claim 1, wherein the vacuum chamber body comprises a seat body and an upper cover, the vacuum chamber is disposed in the seat body; and the upper surface of the seat body is provided The first sealing groove, the cover plate is fixed on the seat body, and a first sealing ring that is locked to the first sealing groove is disposed between the cover plate and the seat body; and the placing hole is disposed on the upper cover plate.
  3. 根据权利要求1所述的X-射线荧光光谱分析仪，其特征在于：所述的容器装置包括杯体及杯盖，杯体内具有所述的样品腔，杯体的底部为与样品腔相通的通孔，透光膜封闭在杯体底部的通孔处，杯盖盖在杯体上，在杯盖与杯体之间设有第二密封圈。The X-ray fluorescence spectrometer according to claim 1, wherein the container device comprises a cup body and a cup cover, wherein the cup body has the sample cavity, and the bottom of the cup body is in communication with the sample cavity. The through hole, the light transmissive film is closed at the through hole at the bottom of the cup body, the lid is placed on the cup body, and a second sealing ring is disposed between the cup cover and the cup body.
  4. 根据权利要求3所述的X-射线荧光光谱分析仪，其特征在于：透光膜自杯体的底部向上翻折，在杯体上套有杯套，杯套与杯体夹持透光膜的翻折部分；杯体的上部具有向外延伸的第一凸缘，第一凸缘与杯套之间设有第三密封圈；杯盖活动的连接在杯套上。The X-ray fluorescence spectrum analyzer according to claim 3, wherein the light transmissive film is folded upward from the bottom of the cup body, and a cup sleeve is sleeved on the cup body, and the cup sleeve and the cup body are sandwiched by the transparent film. The upper portion of the cup has an outwardly extending first flange, and a third sealing ring is disposed between the first flange and the cup sleeve; the lid is movably connected to the cup sleeve.
  5. 根据权利要求4所述的X-射线荧光光谱分析仪，其特征在于：杯套的上部边缘设有向外的第二凸缘，在第二凸缘上设有一个以上的通槽；在杯盖上设有夹扣，夹扣的下端具有向内的卡扣，卡扣卡置在第二凸缘上。The X-ray fluorescence spectrometer according to claim 4, wherein the upper edge of the cup sleeve is provided with an outward second flange, and the second flange is provided with more than one through groove; The cover is provided with a clip, and the lower end of the clip has an inward buckle, and the snap card is placed on the second flange.
  6. 根据权利要求4所述的X-射线荧光光谱分析仪，其特征在于：在杯套的外壁上设有限位环。The X-ray fluorescence spectrometer according to claim 4, wherein a retaining ring is provided on the outer wall of the cup sleeve.
  7. 根据权利要求3所述的X-射线荧光光谱分析仪，其特征在于：透光膜自杯体的底部向上翻折，在杯体的下端部具有台阶，在台阶上套有 夹持透光膜的套环。The X-ray fluorescence spectrum analyzer according to claim 3, wherein the light transmissive film is folded upward from the bottom of the cup body, has a step at a lower end portion of the cup body, and is sleeved on the step A collar that holds the light transmissive film.
  8. 根据权利要求7所述的X-射线荧光光谱分析仪，其特征在于：杯盖与杯体为一体结构。The X-ray fluorescence spectrometer according to claim 7, wherein the cup lid and the cup body are of a unitary structure.
  9. 根据权利要求1所述的X-射线荧光光谱分析仪，其特征在于：所述的密封结构为设在真空腔体座与容器装置之间的油封。The X-ray fluorescence spectrometer according to claim 1, wherein the sealing structure is an oil seal disposed between the vacuum chamber seat and the container device.
  10. 根据权利要求1所述的X-射线荧光光谱分析仪，其特征在于：在真空腔体座内位于透光膜的下方设有保护装置；所述的保护装置包括固定块、下板及保护膜，固定块固定在真空腔体座上，保护膜压合在固定块与下板之间。 The X-ray fluorescence spectrometer according to claim 1, wherein a protection device is disposed under the transparent film in the vacuum chamber seat; the protection device comprises a fixed block, a lower plate and a protective film. The fixing block is fixed on the vacuum cavity seat, and the protective film is pressed between the fixed block and the lower plate.
PCT/CN2015/097339 2014-12-16 2015-12-15 X-ray fluorescence spectrum analyzer WO2016095787A1 (en)

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